The correct answer is letter D
Austrians offered flowers to German soldier on Vienna Street during a ceremony to welcome the troops of Nazi Germany on March 15, 1938. On March 12, 1938, the Nazi German Army invaded Austria and annexed this country to the Third Reich commanded by Adolf Hitler. The annexation, known as Anschluss in German, put an end to a long struggle for power among followers of Nazism, social Christians and Democrats that marked the country in the 1930s. Despite being a military occupation, the annexation was "peaceful "and welcomed by the majority of Austrians.