问题

His grandfather joined the Party in _______and passed away in ______.
A:1960s; his eighty
B:1960; his eighties
C:the 1960s; eighty
D:the 1960s; his eighties;
B:1960; his eighties
C:the 1960s; eighty
D:the 1960s; his eighties;
正确答案是: