Which event caused Yohanan ben Zakkai to start a school for rabbis? A. The Persians defeated the Babylonians and freed the Israelites.
B. Israel divided into two kingdoms, Israel and Judea.
C. The Romans invaded Judea and forced the Jews to scatter.
D. The Exodus from Egypt allowed the Israelites to return to Canaan.

The answer is option C "The Romans invaded Judea and forced the Jews to scatter"

Explanation:

The occasion that caused Yohanan ben Zakkai to begin a school for rabbis was the Roman attack of Judea which powers the Jews to disperse.

At the point when the Romans attacked his city, Zakkai conversed with Roman General Vespasian. He disclosed to Vespasian that he had a fantasy in which he saw Vespasian turning into the Sovereign of Rome. After he informed him regarding the prescience, Zakkai requested that Vespasian let him have a school for rabbis to show the Tora in Yavneh. Vespasian disclosed to him that if the prediction was valid, he would permit him to do as such. One year after, Vespasian became ruler and he permitted Zakkai to have his school.