After the musical festival， Captian Von Trapp is supposed to （） according to the telegram.

After the musical festival， Captian Von Trapp is supposed to （） according to the telegram.
A、fight bravely in the WWII
B、stay with his family together
C、protect Austria against the Nazi Germany
D、serve in the navy for the Third Reich
正确答案：serve in the navy for the Third Reich