The couple anxiously awaited the arrival of their out-of-town guest.

which answer describes the word in bold? the word is anxiously

a.
the word “anxiously” is an adjective that tells how much.

b.
the word “anxiously” is an adverb that tells to what extent.

c.
the word “anxiously” is an adjective that tells what kind.

d.
the word “anxiously” is an adverb that tells in what way.