Which answer choice states a key difference between buddhism's three trainings and hinduism's four purposes?
a. the four purposes prepare people to reduce their desires, whereas the three trainings encourage people to pursue them virtuously.
b. the four purposes prepare people to serve a single god, whereas the three trainings encourage people to serve many gods.
c. the three trainings prepare people to serve a single god, whereas the four purposes encourage people to serve many gods.
d. the three trainings prepare people to reduce their desires, whereas the four purposes encourage people to pursue them virtuously.