"what if the sun were to explode? " says alene. "but it never has," replies janis. "but what if it did? " pushes alene. "but it never has! " insists janis. in this example, alene is exhibiting thought, whereas janis is showing thought.

I believe the answer is: abstract; concrete

Abstract thought refers is  characterized by thinking about a situation or a principle that hasn't happen (such as what would happen if sun blow up, what would happen if cars can fly, etc)
Concrete thought on the other hand is characterized by thinking about something or reasoning that already exist in our physical world.

This question is an opinionated one, and we don’t know anything about the module or anything, thus we can not answer it. but if you are having trouble on what it is asking basically it is just asking to (using your knowledge on the topic) say which topics you were most interested and which were the most challenging.hope this : p