The root word of regarded is regard.
A common noun.
A proper noun would be a word that always has to be capitalized , like names of places , people and such , therefore that would make it a common.
The author wants you to know the purpose of the quote or title he puts in it “The Red umbrella”
Explanation:
Red is a color of beauty and an umbrella is the resistance to sky's and humans' attacks.
All of the above is the correct answer
The correct answer is b. if i'm not mistaken, that rose is the reddest of all.
This is the correct answer because reddest is a superlative form and does not require MOST to be used.