The answer to your question is alkanes
I think the answer is 1. after
The answer is A. Environmental conditions are not always right to produce flowers and seeds for sexual reproduction.
Most plants are able to reproduce either way because even if the conditions aren't right for the plant, it can still make more flowers so it doesn't die out.
I hope this helps! :D
HI there
I would go with D.cirrus
Take care
-Ans-