A timeline of the start of the Iranian Revolution from 1978 to 1979. The shah of Iran went into exile in January 1979. Ayatollah Khomeini returned from exile and came into power in February 1979. The shah was admitted to the U S for medical treatment in October 1979. Iranian students seized the U S embassy in Tehran in November 1979. The Iranian Revolution was from January 1978 to February 1979. What can you infer was the justification students gave for invading the US embassy?

They were angry about American acceptance of the shah for medical treatment.
They were dissatisfied with the quality of US medical facilities.
They were angry that the Ayatollah Khomeini came into power.
They felt disappointed that the shah went into exile