2 ways pea plants pollinate

Method 1 : Self-Pollination

Peas are naturally self-pollinating and self-pollination happens before the flowers open.

In self-pollination, pollen grains from anthers on one plant are transferred to stigmas of flowers on the same plant.

Method 2 : Cross -pollination

Peas can  be cross-pollinated by hand, simply by ;

opening the flower buds to remove their pollen-producing stamen which prevents self-pollination and dusting the pollen from one plant to the stigma of another.

Explanation:

your answer should be c) enjoy!