Answer:
a law stating that the ratio of the sines of the angles of incidence and refraction of a wave are constant when it passes between two given media.
Explanation:
I think the answer is A. an email letter
i think it's a
I don't see any following options to answer your questions.
?
B
Explanation
The sentence is stating that a person is "Excited".
So, that is an adjectival phrase.
