Only 'b' is used correctly.
In 'a' it should be hers
In 'c' it should be its
In 'd' it should be his
I think its B? judging the quotes he has stated.
So people don’t forget their chords, and writing down music helps with performances so musicians don’t forget thier chords :) hope this helped!
It is C. he has found his perfect disciple.
As a noun: He called security. <em></em>(<em>security is a noun</em>)
As an adjective: There are strict security measures (<em>describes what the measures are like</em>)
