Mendel Chose the Garden Pea for His Work on Inheritance

Mendel chose the garden pea for his work on inheritance for which of the following reasons? Check all that apply.

A) Some traits in pea plants are controlled by one dominant allele and one recessive allele.
B) Earlier investigators had shown segregation among the offspring.
C) A large number of true breeding varieties were available.
D) The generation time was short; many offspring can be grown easily.
E) He could choose to self- or cross-pollinate.