I believe the answer is D. He was not ready to begin working on a complicated new problem.
After all, we did love playing a prank on him.
In my opinion, yes, people should pick an occupation based on their personal interest. This is because if they start an occupation and it is not something you want to pursue, you will more than likely not be happy with what you do. It is better to go into something that you are sure you will enjoy so that you will be happy!
Hope this helps! :)
B.
Red roses are associated with romance.
The answer is the second one