Which of the following factors best explains the increase in white male suffrage in the early nineteenth century? a. reaction to widespread political protest
b. resistance to increased federal taxation
c. amendments to the united states constitution
d. changes to property ownership requirements

Changes to property ownership requirements

Explanation:

In the first half of the 19th century, free suffrage became the main objective of men who were of the belief that they did not need to be owners of properties to have an interest in their country's fortunes. Owning a property in the United States became a criteria to vote, thus this made only the whites eligible, only but a few women and free African American were eligible to read.