The poem "Ozymandias" written by Percy Busshe speaks in a traditional, simple manner how much the human aspiration to their power and material achievements and wealth provides for themselves an eternity. Thinking that their material, earthly power is immortal, tells how much they cheat themselves, in the inability to understand what is eternal. Even the Ozymandias's statue, which is material and transient, is decaying, more durable than them.
The answer is: C.
It should be:
With sincerest and warmest regards
I believe the answer is the third option "Because outside research adds scholarship to my own opinion." Hope this helps. (ノ◕ヮ◕)ノ*:・゚✧