Select the correct answer
The descriptive structure that both authors use helps the reader understand that-
A
space travel is a challenging mission and people have worked on its development for several decades to make it a possibility
B.
space travel had a lot of problems in its early stages and scientists have only recently been able to resolve them
robots are slowly replacing human astronauts and beginning to travel to distant parts of the universe and study it
C.
the history of space travel was far grander and richer than it is today because there were many more manned explorations

A) space travel is a challenging mission and people have worked on its development for several decades to make it a possibility

Explanation:

Both articles talk about the history of space and all the challenges and difficulties that space programs had to go through to make space travel a possibility. Plus, I took the quiz and got it correct.

answer: third

explanation:

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.