Here are the matched causes with their effects:
-
Cause: Gandhi refused to move to the back of the train.
Effect: Gandhi organized massive protests. -
Cause: Hindus and Muslims could not reach an agreement.
Effect: The subcontinent was divided into India and Pakistan. -
Cause: Gandhi wanted India's independence from Britain.
Effect: Gandhi was removed against his will.
This matches the events and their consequences as mentioned in your provided text.