We were _________for half an hour in the traffic and so we arriv

We were _________for half an hour in the traffic and so we arrived late.
A、held up
B、put back
C、broken down
D、taken down
【正确答案】：A
【题目解析】：hold up 困住了的意思。句意：我们因交通堵塞而耽搁了半小时，所以迟到了。