Answer:
b.) earthworms and ants
Step-by-step explanation:
Pedogenesis is also knowns as Soil formation. This is the process of soil formation due to the regulated effects of place, environment, and history.
The rock from which soil is formed is called the parent rock (bedrock).
The most important life form during the beginning of pedogenesis are earthworm and ants because their burrowing nature in the soil helps in the breakdown of the bedrock. This aids the process of soil formation.