A copy of Trotha's Extermination Order survives in the Botswana National Archives. The order states "every Herero, with or without a gun, with or without cattle, will be shot. I will no longer accept women or children, I will drive them back to their people [to die in the desert] or let them be shot at."
The answer letter d I just know
Answer: A prison sentence
Explanation: a formal sanction is any sanction by law and is enforced by an authoritative source.
The others would all be informal sanctions