What can be learned from Paragraph3?

What can be learned from Paragraph3?
A、Historians are to find the weakness of science.
B、Scientific findings are infrequently challenged.
C、Uncertainties prevent science from progressing.
D、Doubt fosters a better understanding of the world.
【正确答案】：D
【题目解析】：怀疑有助于更好地理解这个世界。