Which of the following caused the Iran hostage crisis in 1979? A. Israel and Egypt signing a peace treaty B. the Shah's entry into the United States C. the Soviet invasion of Afghanistan D. Khomeini's entry into the United States

The Shah's entry into the United States was the cause among the following options that resulted in the Iran hostage crisis in 1979. The correct option among all the options that are given in the question is the second option or option "B", This happened because the general people of Iran thought that the United states was protecting the Shah.