Why were garden peas a good choice for a study of heredity?

a
They come in many varieties
b
The breeding, or pollination process is easy to control
c
They produce a large sample size, or many offsprings
d
All of the above

d. All of the above

Garden peas are a good choice for a study of heredity because they come in many varieties, the breeding process is easy to control, and they produce a large sample size of offspring for study.