To examine the Exhibit, press the Exhibit button. While a developer is compiling a C program, "vmstat 120 10" is run to determine the cause of a performance problem.  Using the vmstat output as shown in the exhibit, which of the following conclusions is most appropriate to draw about the machine?()<br /> <img src="https://nimg.ppkao.com/2018-08/xiashuhui/2018080211115650643.jpg?sign=376d40abbb008cc982cb738c9cc34524&t=62d44b05" />
A、 The machine has too many users.
B、 The machine has an I/O bottleneck.
C、 The machine has a CPU bottleneck.
D、 The machine has a memory bottleneck.