Answer:
D. The general will execute anyone who does not pronounce a word in a certain way.
Step-by-step explanation:
Anyone who couldn't pronounce the "r" in "perejil" (Spanish for parsley) like a native Dominican Speaker will be put to death by the general.
It is not A because though the poem makes a number of references to cane harvesting, there isn't evidence to support this answer.
It is not B because while the general's sanity could be called into question based on a reading of this poem, there isn't evidence in the text that indicates the parrot is not real.
It is not C because there is no evidence to support this answer.
Hope this isn't confusing and hope this is helpful :)