Answer:
D
Step-by-step explanation:
The sentence in option D correctly uses parallelism, and it is an appropriate revision for the passage. The reason is that parallelism requires a construction with the same grammatical pattern in the sentence. The sentence flows; it starts with an adverb phrase indicating the period it happened, then describes how the subject becomes, by using the same pattern: adverb too accompanying each of the adjectives (powerful, influential, and wealthy.