Answer:
The correct answer is option - anther.
Explanation:
Mendel facilitated hybridizations by involving by the mating of 2 true-breeding individuals pea plants that have different traits.
Pea plant is a self-pollinating plant that is performed by transferring pollen from the anther of one mature pea plant of one variety or type of the stigma of another pea plant of another trait or variety.
Thus, the correct answer is option - anther.