Which diagram most effectively shows how a voter influences policy? A. A company contributes money to a candidate's campaign. The candidate agrees to meet with the company before an upcoming vote.

B. A voter writes to his senator expressing concern about her stance on gun control. The senator realizes what issues are important to are important to the people she represents.

C. A voter registers to Vote. He increases his local voter turnout slightly.

D. A voter volunteers for a political campaign. His preferred candidate wins the election.

The answer is B. A voter writes to his senator expressing concern about her stance on gun control. The senator realizes what issues are important to are important to the people she represents.