Sample are the characteristics of the individuals of the population being studied
Answer:
The correct option is E: has significantly decreased the number
Explanation:
From the sentence, we can see that the sentence subject in this case is activism, and the singular verb is identified as "has", thus this eliminates the options A and B. Option D is too wordy and awkward. In Option C, the word "lead" makes the sentence wrong, as "led" would be correct since "demanded" is in past tense. Only Option E is correct.
The native Americans were relocated and given reservations where they could settle.
Your answer is most likely C. :) Glad I could help!!