Statistics indicate that between 1824 and 1840 the proportion of eligible voters actually voting in presidential elections:

A) Increased substantially
B) Increased slightly
C) Decreased substantially
D) Decreased moderately

Between 1824 and 1840, the proportion of eligible voters actually voting in presidential elections increased substantially due to changes in state laws regarding property requirements for voting, which expanded the electorate, and the rise of more organized political parties, which mobilized voters.