After reading the paragraph below, choose the most appropriate topic sentence. John Milton was imprisoned for his support of the Commonwealth. He had difficulties supporting his large family, and yet wrote a brilliant epic. In the same way, John Bunyan was imprisoned, became impoverished, and yet was strengthened to write a great allegory.

John Milton was poor, but wrote a great epic.
John Bunyan was poor, but wrote a great allegory.
The writers John Milton and John Bunyan had much in common.
The writers John Milton and John Bunyan had very little in common.

the correct answer is option d. none of these. it is noted that options a, b, and c share the same content.

despite the valid answer provided at the last sentence of each of the options, a question/answer format shouldn't include humourous themed responses such as "you bet your thermal pj's we do." - unless of course, the answer is carried out in an informal environment. this could be replaced with a simple "yes" or "it is necessary".

the question should be re-phrased to a more appropiate syntaxis. instead of "do we need the greenhouse effect? ", it should be written as "is the greenhouse effect necessary? " in order to give it a general scope, instead of limiting the answer to the needs of "we" the humans.