Answer:
A. It was signed by Stalin and Hitler.
Step-by-step explanation:
That´s incorrect. The Nazi and the communist Soviet dictators were aware and approved all the contents of the Non-Aggression Pact, but they did not sign it themselves. The accord, also called Pact Ribbentrop-Molotov, was signed in Moscow on August 23, 1939, by the ministers of Foreign Affairs of the III Reich and the USSR, Joachim von Ribbentrop and Vyacheslav Molotov, respectively.