以下内核启动过程中的函数执行顺序是什么?()
A. . start_kernel,rest_init,kernel_init,kthreadd,cpu_idle;
B. . start_kernel,kthreadd,cpu_idle,rest_init,kernel_init;
C. . start_kernel,kernel_init,kthreadd,rest_init,cpu_idle;
D. . start_kernel,kernel_init,rest_init,kthreadd,cpu_idle;