Which of these uses pathos?

a. we are starving because the food, if you can call this slop "food," at our school is not fit for the lowest grub on this fine earth!
b. all of the other schools in our district offer organic foods in the lunchroom; therefore, our school should offer organic foods as well.
c. yum organics has been providing well-rounded organic lunches to schools on the west coast for more than 15 years.
d. the food at our school is o. k.; however, i wish we had more organic choices.