During the late 18th century, which country gave the
most support to the american colonists during the
revolution against the british?
a. scotland
b. canada
c. mexico
d. france

France

Explanation:

France played a pivotal role in the American revolution. France supplied the Americans with weapons and other supplies. They also supplied the Americans with troops. The French navy was especially helpful to colonists as the colonists  navy could not compete with the British navy. Scotland was part of Britan at the time and for that reason provided no aid. Canada was still a British colony and many Canadians were ardently loyal to the British crown. Mexico was part of Spain at the time. Although Spain provided the colonists with some aid and supplies it was nowhere on the scale of the aid provided by the French.

the thirteen colonies are:

connecticut, delaware, georgia, maryland, massachusetts, new jersey, new york, new hampshire, north carolina, pennsylvania, rhode island, south carolina, virginia