Predominant means
a) necessary
b) important
d) improved
с) aggressive

I am pretty sure it would be b) important

Explanation:

Some common synonyms of predominant are dominant, paramount, and preponderant. While all these words mean "superior to all others in influence or importance," predominant applies to something that exerts, often temporarily, the most marked influence.

what are your options ?

i would say years or cherry blossoms

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