The trade union decided to ________ to take the strike when the

The trade union decided to ________ to take the strike when the boss promised to satisfy the workers' demands.
A、call out
B、call on
C、call off
D、call to
【正确答案】：C
【题目解析】：call out唤起；出动；大声叫唤；call on访问，拜访；号召；call off取消；依次叫名；call to打电话给；呼唤；向…喊。句意：当老板答应满足工人的要求时，工会决定取消罢工。