Mendel selected the garden pea plants for his experiments. Explain.

Mendel selected garden pea for his experiments because of the following characteristics.
$\left(i\right)$ Their flowers are bisexual.
$\left(ii\right)$They are self pollinating, and thus, self and cross pollination can easily be achieved.
$\left(iii\right)$Their different physical characteristics, were easy to recognize and study.
$\left(iv\right)$They have a shorter life span and are easier to maintain.