I believe the answer is D as well. Hope this helps
The density of liquid can not only help with sciences, but can help you with finding out the murderer of a crime novel. For example, if the killer had poisoned the ice or drink, knowing what the density of liquid can help you find out what poison was used or the antidote.
Answer: Metaphor
Reasoning: It doesn’t use like it as so it’s not a simile.
gender roles are enforced when parents or even society tells women to "act like a girl" by wearing makeup and wearing dresses and being feminine overall. This leads to men saying girls hit "Like a girl". Men are also supposed to "act like a man" and be strong and not cry or show feelings.