One Military Solution the British Used to End the Sepoy

One military solution the British used to end the Sepoy Rebellion was:

A) to disband the native Indian military units and send the men home.
B) to convene a military tribunal to protect the rights of the accused mutineers.
C) to ship all the mutineers back to England to serve their life imprisonment.
D) to do nothing with the enlisted men but provide long prison terms for the leaders.
E) to have the surviving mutineers immediately tried and executed.