A) They gave me a bonus is the sentence which contains an indirect object.
Binsey Poplars is full of unusual language, internal rhyme, alliteration, assonance, sprung rhythm and repetition. Hopkins developed his own unique sprung rhythm, based on a much older metric tradition with roots in Greek song and Welsh poetry.
Find the five w's
who
what
when
where
why
I'd say "but" is a transition word here.