Question

What is the main idea of this passage?
About 25,000 people came to the site through the
megaphone.
Statistics show the megaphone was a success in
South Carolina.
About 75 percent of visitors showed an interest in
registering to vote.
The voter registration megaphone was set up in
South Carolina in January

Answer 1

i would think the author is speaking about an political event in which people vote.

Answer 2

B. Statistics show the megaphone was a success in South Carolina