What deal did congressional democrats and republicans make after the presidential election of 1876?
the president would be a democrat, and the vice president would be a republican.
the president would be a republican, and the vice president would be a democrat.
the president would be a democrat, and federal troops would be removed from the south.
the president would be a republican, and federal troops would be removed from the south.

The right answer is The president would be a Republican, and federal troops would be removed from the South.

The presidential election returns of that year were so close that a special commission was established to count contested electoral votes. A decision hammered out at a secret meeting gave the presidency to the Republican, Rutherford B. Hayes; in return, the Democrats were promised that the last federal troops would be withdrawn from Louisiana and South Carolina, putting an end to the Radical Republican administrations in the southern states

d is the best answer for this question.