The information below was retrieved from the file $/$proc$/$meminfo$.$ What is this related to$?$

ubuntu@ubuntu:$/$proc$ head $-3$ meminfo

MemTotal: $4018232$ kB

MemFree: $324968$ kB

MemAvailable: $2834220$ kB

Question $12$Answer

a$.$

None of the others

b$.$

A specific process

c$.$

A specific kernel module

d$.$

The system's memory managed by the kernel