Which word in the sentence does the adverb clause modify?

the day feels warmer since the sun came out.

a- since
b- day
c- feels
d- warmer

"alexandre, i know you don't like me, listen to me; listen, i beg you. but, my dear, how can this have happened? why, it's awful, awful! for goodness' sake, beg them, defend yourself, entreat them." based on the context clues in the paragraph, which group of words are synonyms of entreat?