Well, it could either be metaphor for something (I'm not sure, I haven't read the poem) or 'alliteration', because G is repeated often. The rest of the options aren't possible, because there is nothing ironic here, nor is there a simile, or a metonymy.
Answer:
C
Explanation:
I'm just assuming with this so please tell me if I am right. Have a good day
Answer:
Large is the adjective in that sentence
Answer:
They over use and analyse some certain topics and make a big deal about such topics
