What economic activity led to the development of towns in medieval europe

The economy of Medieval Europe was based primarily on farming, but as time went by trade and industry became more important, towns grew in number and size, and merchants became more important.

answer; (d) i believe that the correct answer is americans finally ran out of ammunition;

lincoln won 212 electoral votes to mcclellan's 21 votes, and lincoln beat mcclellan. is the main reason lincoln won in 1864.