Answer:
Option A is the correct option.
Step-by-step explanation:
The following option is true because when the user or any organization is installing the updates of an operating system and then, some technicians that its failure and they observe that 100% usage of the computer's CPU is done and the user takes the advice of the technicians regarding to the following queries then, they tell them the following problem is that there is an insufficient numbers of the physical processor cores.