The correct answer is "In both poems, the final stanza sums up the poem's meaning."
In "Pears", the first stanza describes how the speaker's aunties have swelled at the waist and resemble pears, but this swelling is due to the goodness of their lives, making a refuge for a child. Thus, in the second stanza we are told that the sweetest people the speaker knows are those who resemble pears, because of what he or she explained in the first stanza.
In "Hunger", stanzas from 1 to 3 describe the feeling of hunger and how to "cure it" with lots of food. In stanza number 4, the speaker is not feeling good after she or he ate a lot. Finally, the last stanza is the one that sums the poem meaning, telling us that hunger is suppressed by eating (stanzas 1-3) but do not eat too much or you will feel sick (stanza 4), thus summing up the meaning of the whole poem.