I believe the answer is A "Sea monkeys were more popular when they were marketed as 'Instant Life'." Hope this helps!
It’s been weeks and I already sent the answer to you. So... Can I have the 10 points? Technically, I helped you in answering this question.
Answer:
Art never was in critical conditions, it has always evolve to something different but never was in risk of being erased from earth.
Explanation:
Critical conditions is a term use in medicine to describe complications in a patient, specially when the person is in a really delicate state and his life is at risk. When using this term in art we can appreciate that art has never been at risk of dying, it only changes to different types and forms.
Both options are technically grammatically correct, but the one that makes the most sense in this sentence is "when."