What Is Meant by the Phrase, "Voting with Their Dollars

What is meant by the phrase, "voting with their dollars?"

A) "Voting with their dollars" implies that consumers choose the available products on the market by means of their consumer purchases.
B) "Voting with their dollars" implies that voters influence government by means of campaign contributions.
C) "Voting with their dollars" implies that consumers influence business activities through bribes and payoffs.
D) "Voting with their dollars" implies that voters must pay one dollar each time they vote.