What event sparked the gulf war?
a. iraq invaded iranb. iraq invaded kuwaitc. the soviet union invaded afghanistand. kurdish civilians were massacred by saddam hussein the us assisted on the side of the resistance movement in the afghan war in the 1980s toa. put down afghan rebels.
b. put down islamic rebels.
c. reduce soviet presence in the region.
d. reduce iranian presence in the region.?

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:

music

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