Umm... I'm confused between a, and d can someone please clarify this practice?

Answer:
The answer is A
Explanation:
The analogy talks about how science can be built up like stones or destroyed like a heap of stones and never talks about creating life.
Answer:
It's A
Explanation:
A explains that science and a house are similar because they can both be built up but be destructed by something. D only explains that science is formed by building blocks but only in a certain way.