Answer:
Sir, Through this letter you have to inform that I am getting very high electricity bill for last 2 months which is about Rs. 20000 is more. It appears that there has been an unexpected increase in the bill, because I know that our electricity consumption is not so high.
Explanation:
Menacing= threatening
Interminable= Continuous or never-ending
Exuded=To give off a smell or attitude
Noxious=poisonous
Vast=huge
Monotonously= Repeating the same actions so that it becomes boring.
Melancholy= Deeply sad
Inhabited=Lived in or on
Your answer should be WHO.
Think of it like this: You wouldn't say "The boy it (a variant of 'which')", because it simply just sounds odd. Instead, you're wired to think "The boy, he (an unknown name, so it would be 'who')".
His penis.... that's how anything is conceived.. If this gets taken down I'ma be salty because it's true.
I believe the answer is the third option "Because outside research adds scholarship to my own opinion." Hope this helps. (ノ◕ヮ◕)ノ*:・゚✧