Which of these sentences from “with a little from my friends” contains a metaphor?

a. my life became one long-running oprah show, minus the free luxury accommodations in chicago, and oprah.
b. any unsuspecting american who asked my father a question received, as a bonus, a lecture on the successful history of the petroleum industry in iran.
c. i tried my best to be a worthy representative of my homeland, but, like a hollywood celebrity relentlessly pursued by paparazzi, i sometimes got tired of the questions.
d. often kids tried to be funny by chanting, "i ran to i-ran, i ran to i-ran."