As in any business, there must be one person responsible for the

As in any business, there must be one person responsible for the ___. That person is the general manager.
A、Managing direction
B、Overall operation
C、Marketing operation
D、Hotel direction
【正确答案】：B
【题目解析】：B. Overall operation：这个选项明确地指出了“总体运营”。在任何企业中，总经理通常负责整个企业的运营，包括战略、管理、财务等各个方面。因此，这个选项非常符合问题中“必须有一个人负责”的描述。