Answer:
Option (A) and (D) are the correct suitable answer for the above question.
Step-by-step explanation:
Multitasking is a concept in which multiple events are occurring at the same time. It is a processor power that can able to handle multiple tasks simultaneously in the same unit of time.
Practically, the events are not occurring at the same amount of time but it seems to the user that task is performing simultaneously because of processor switching. In processor switching, the processor switches the task one by one and performs them but it is so fast. Hence the user seems that the task is performing simultaneously.
Another option does not make any sense for the above question because--
Option b justify for the division of tasks not to do multiple tasks in a single unit of time.
Option C justifies the concept of memory allocation.