Which of the following was an effect of the crusades? a. people became more isolated in their home regions. b. christianity was limited to european countries. c. muslim advances in science and medicine spread to europe. d. trade declined because people feared violence.

An effect of the Crusades is option D, Trade declined because people feared of violence.

Explanation:

The crusades were military campaigns that were carried out by Europe, France and the Roman Empire. Their objective was to reestablish Roman apostolic control and they were carried out between 1096 and 1291. They were brought against Muslims, Jews, Cathars, Russians, Lithuanians and political enemies of the church.

Due to the violence generated, commerce declined because people feared the way things were carried out.

the best and most correct answer among the choices provided by the question is the second choice "less supportive to the war of 1812"

the war of 1812 was a military conflict that lasted from june 1812 to february 1815, fought between the united states of america and the united kingdom, its north american colonies, and its native american allies.

i hope my answer has come to your . god bless and have a nice day ahead!