Question

Which sentence uses the positive form of an adverb?

A.
I'm happier after hearing that news.


B.
Dad quietly worked on his car.

C.
Of all the waiters, Jody brings our food fastest.


D.
Jack awoke earliest of his friends.

WILL GIVE BRAINLIEST THANK YOU

Answer 1

B. Dad quietly worked on his car is the sentence with the positive form of the adverb. In sentences  C and D the superlative form of the adverb is used (the ending -est usually gives us the clue) and in Sentence A the word "happier" is simply a comparative adjective.