After Adolf Hitler signed the Munich Pact in September 1938, which allowed Germany to annex the Sudetenland of Czechoslovakia as part of the policy of appeasement, his actions included the invasion and occupation of the rest of Czechoslovakia in March 1939. This demonstrated that Hitler's aggressive ambitions extended beyond the Sudetenland and that the policy of appeasement had failed to prevent further German expansionism. Therefore, the correct response is:
Germany invaded and occupied the rest of Czechoslovakia.