I think the answer would be A , break the darkness period with a flash of light for some time so that the plants can bloom all year round.
Carbon shares 4 electrons to complete its valence shell
Natural selection doesn't favor traits that are somehow inherently superior. Instead, it favors traits that are beneficial (that is, help an organism survive and reproduce more effectively than its peers) in a specific environment. Traits that are helpful in one environment might actually be harmful in another.
(one again, I hope this helps ^^)
