Which of the following best explains the significance of the nazi-soviet non-aggression pact of 1939? a. because of the pact, germany agreed to only invade areas of western europe. b. because of the pact, stalin agreed to the germans conquer all of europe. c. because of the pact, the soviets agreed that they would take no part in world war ii. d. because of the pact, hitler felt he had secured germany's border with the soviet union.