A thesis with a general topic (your answer is a) because then you break down your essay into more detail, using the topic sentence you created to describe what you would be talking about in your essay. Hope this helps.
The second sentence uses the definition of the word.
Explanation :
In the second sentence the subject takes a medication that makes him/her "soporific", meaning it promprs him/her to sleep. Hence, the person has to avoid driving since it can be dangerous. In the rest of the example there is no logical connection between the noun affected by "soporific" and the predicate: in all the other cases the effects stated are those of excitement, accelaration, and enhancement.
During those months Rachel's mother looked after Aaron with something close to genuine fondness-- not pity, not obligation-- as though Aaron had become the son she always wanted.
This sentence flows very nicely and also makes sense. You can see that the punctuation is proper, the sentence makes sense, and the grammar is correct. With that in mind, that it the correct sentence structure.
