An understatement is the downplay of something.
A run-on sentence is a sentence having two independent clauses with improper punctuation and without conjunctions. The correct answer is option b. It is difficult to understand a run-on sentence because you cannot identify where to pause or stop and that the sentence does not have conjunctions which would help in the transition of clauses.
In the poem "The Bean Eaters," Brooks describes a couple of old people. She talks about the life they live, and the image is one of simplicity and routine. We learn that the couple is not wealthy, and in fact, they are quite poor. This is the reason they mostly eat beans. The poem is meant to highlight the injustice of poverty, and the sad situation of people like this couple. Brook's use of end rhyme and internal rhyme contributes to this overall meaning. It helps develop the idea of desolation and simplicity that characterizes the couple's existence.
The correct answer is B.
This answer has no examples of figurative language. King wrote this line for it to be interpreted literally.
On the contraty, answers A, C and D, all contain metaphors.