What is the best description of multitasking in a support center?

A.
Multitasking is dealing with incidents and problems simultaneously.

B.
Multitasking is managing the support center without help from your team.

C.
Multitasking is taking as many calls as possible with the fewest number of analysts.

D.
Multitasking is the ability to work on a number of tasks simultaneously while remaining effective.