Frequently means often.
I hope this helps.
The question is unclear /unfinished please send again.
Is it essay? the question is unclear /unfinished please send again.
B. But only so an hour
the word only indicates that "an hour" is considered a short time period for the flower, and so it represents "the youth" of it being a flower before it becomes like the rest
The answer is B. Hunger is the primary motive that drives humans to wander to greener pastures. I took the test and got it right, hope this helps!