The correct answer is a.: specific.
This structure (this +adj) requires an adjective and the only adjective is in a., the other options are verbs or nouns and are not correct.
Answer:
And he said that meens Im doing something grate for sience and Ill be famus and my name will go down in the books. I dont care so much about beeing famus. I just want to be smart like other pepul so I can have lots of frends who like me.
Explanation:
The answer is B. In order to write a good opinion essay, you need to feel strongly about a specific topic.
Hope this helps!!