The answer is B, words that have double meaning.
This means that he feels very drugged as if he had just taken an opioid or something. He hears a nightingale singing saying that the bird is spreading its happiness too much. He is also saying that he too is happy because he can hear the nightingale sing somewhere amidst the forest.
It is a fragment because it doesn't make sense on its en. Its a subordinate clause.
<span>A.agile
Agile is a synonym for nimble, meaning moving quickly and easily, as one would be able to run and jump over hurdles.
B. Begged
Begged is the closest match for 'entreated', because it shows she really wants something but isn't going to be too demanding. </span>