Which of these excerpts from margaret frink's memoir most clearly shows that her story is told in the first person?
a. it was mr. frink's plan to remain here until enough of the coarse grass had been cut and cured into hay to feed our horses across the desert.
b. away from the river, the soil is hard and dry, void of any vegetation except sage-brush, which is worthless for any purpose but fuel.
c. the carsons had two wagons, with four horses to each, having bought more horses at ragtown, after losing their mules on the desert.
d. there was some bare ground on the south side, but between the rocks there was plenty of snow.