How was slavery in the islamic world different from the slavery later practiced in the americas?
a. in the islamic world, slavery was seldom hereditary
b. in the islamic world, it was forbidden to enslave "protected peoples"
c. in the islamic world, slaves did not become soldiers
d. in the islamic world, slaves were used exclusively for agricultural labor

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation: