It's crucial bc it basically builds the plot
Your answer would be A.
I used D and got it wrong but when i checked it was A
Here is the proof have a nice day!!
The answer is D: A magazine article describing how people's lives have been improved by products developed as a result of the space program.
The most compelling piece of evidence is to show —like the article of the magazine does, which would have to be founded on evidence that could be corroborated— how and in what sense the lives of human beings have been improved by space exploration and showing, also, that these benefits outweigh the cost of space exploration.