I believe the second choice is the best option. “Millennials are credited with creating new and fast-growing buzzwords like “adulting.”
Answer: 1) She had been given many ideas for the project by the class, but she used only one.
Explanation:
When using active voice, the emphasis is on the subject (person). The subject is the one doing the action on the object and not the other way around as is the case with passive voice for example: "<em>Parrain answered the question</em>" instead of "<em>The question was answered by Parrain</em>."
The above explanation rules out the third and fourth option as the focus there is not on the subject. The second option might be active voice, but it uses two sentences so is not correct. This leaves the first option as the correct one.
