Identify the prepositional phrase. we leave in a week

Baca use comforting imagery. which lines have a more serious tone than the rest of the poem a. when the outside world / no longer cares if you live or die; b. so it is a pot full of yellow corn / to warm your belly in winter, c. remember. / i love you.d. it's all i have to give, / and all anyone needs to live,