What was problematic about the 1876 presidential election?
a. one of grant’s staff members ran for president, even though he’d been accused of taking bribes.
b. tilden won the popular vote, hayes narrowly won the electoral vote, and votes in four states were disputed.
c. the republican party was divided between grant’s followers and the liberal republicans.
d. hayes won the popular vote, tilden narrowly won the electoral vote, and florida’s voting results were disputed.

Correct answer choice is :

The United States presidential election of 1876 was one of the common disputed presidential elections in American Chronicle. Samuel J. Tilden of New York outpolled Ohio's Rutherford B. Hayes in the democratic vote, and had 184 electoral votes to Hayes' 165, with 20 votes uncounted. The Agreement of 1877, which granted all 20 electoral votes to Hayes. In return for the Democrats' permission to Hayes's election, the Republicans accepted to withdraw federal delegations from the South, closing Reconstruction.

sorry i do not know this