19, The struggle between Henry the IV and Gregory VII was known as
a. the Investiture Controversy.
c. the Magna Argument.
b. the Seven Years War.
d. the Concordat of Worms.

A-The Investiture Controversy.

Explanation:

The conflict between Gregory VII and Emperor Henry IV is called the Investiture Controversy, and this happened in 1076.

a. the Investiture Controversy.

this is correct answer

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