dutch/english choice of answer

Author: stgm

problems/beatles/index.md

@@ -6,7 +6,7 @@ This exercise helps you practice creating `struct`s and variables of some struct
 
 ![embed](https://www.youtube.com/embed/E4lb2gkyXr8)
 
-Watch the video and then precisely answer the following questions. The video may not suffice for answering the questions, so we encourage you to seek additional information online.
+Watch the video and then precisely answer the following questions (in Dutch or English). The video may not suffice for answering the questions, so we encourage you to seek additional information online.
 
 1. What is the "dot operator"?
 

problems/tiles/index.md

@@ -54,7 +54,7 @@ Given the above, it should come as no surprise that `board` is an important vari
 
 ## Questions
 
-Read over the code and comments in `tiles.c` and then answer the questions below in `questions.txt`, which is a (nearly empty) text file that we included for you inside of the distribution's `tiles` directory. No worries if you're not quite sure how `fprintf` or `fflush` work; we're simply using those to automate some testing.
+Read over the code and comments in `tiles.c` and then answer the questions below in `questions.txt`, in Dutch or English, which is a (nearly empty) text file that we included for you inside of the distribution's `tiles` directory. No worries if you're not quite sure how `fprintf` or `fflush` work; we're simply using those to automate some testing.
 
 1. Besides 4 × 4, what other dimensions does the framework allow?
 1. With what sort of data structure is the game's board represented?
@@ -108,7 +108,7 @@ This function checks if the puzzle has been solved. To do this, we count all til
 
 So what to do?
 
-1. Answer the questions above in `questions.txt`.
+1. Answer the questions above in `questions.txt` (Dutch or English).
 1. Implement Tiles, per the comments in `tiles.c` and the information from this specification.
    {: start="0"}
 

problems/tiles_single/index.md

@@ -47,7 +47,7 @@ Given the above, it should come as no surprise that `board` is an important vari
 
 ## Questions
 
-Read over the code and comments in `tiles.c` and then answer the questions below in `questions.txt`, which is a (nearly empty) text file that we included for you inside of the distribution's `tiles` directory. No worries if you're not quite sure how `fprintf` or `fflush` work; we're simply using those to automate some testing.
+Read over the code and comments in `tiles.c` and then answer the questions below in `questions.txt`, in Dutch or English, which is a (nearly empty) text file that we included for you inside of the distribution's `tiles` directory. No worries if you're not quite sure how `fprintf` or `fflush` work; we're simply using those to automate some testing.
 
 1. Besides 4 × 4, what other dimensions does the framework allow?
 1. With what sort of data structure is the game's board represented?
@@ -101,7 +101,7 @@ This function checks if the puzzle has been solved. To do this, we count all til
 
 So what to do?
 
-1. Answer the questions above in `questions.txt`.
+1. Answer the questions above in `questions.txt` (Dutch or English).
 1. Implement Tiles, per the comments in `tiles.c` and the information from this specification.
    {: start="0"}