A simile can be found when using "like" or "as" between two things. Example: I'm as happy as a clown.
Your question would be a metaphor. Both things are being compared to a science expieriment, probably meaning that they need to have an outcome, but it isn't known for sure if it will be a good or bad outcome.
Things like this can be taken many ways, so if you think something else, I'm sure it would work as well.
Answer:When they get better at swimming they going to move to different levels , keep getting better keep leveling up and getting promoted
Explanation:
I'm i think its b because it makes more sense, i'm pretty sure it's b
The one that sounds like itd make sense is D
