Scheduling of Tasks Is a Very Important Consideration in RTOS

Multiple Choice

Scheduling of tasks is a very important consideration in RTOS. Which of the following best described the scheduling policy design:

A) The scheduler must follow a pre-emptive policy
B) The scheduler must not use pre-emptive policy option
C) The scheduler must not only use pre-emptive policy options with the priority considerations.
D) The scheduler must not use pre-emptive policy option, but must employ priority consideration.