Q: What do earthworms ingest in order to form and enrich soil?\nOptions:\n- (A) segmented\n- (B) vegetation\n- (C) sediment\n- (D) bacteria\n- (E) Chlorophyll\n- (F) sandworm\n- (G) crawling\n- (H) dirt
Let's think step by step below.

User
Earthworms are important deposit feeders that help form and enrich soil. Deposit feeders ingest sediment and then extract the food. Earthworms ingest sediment to then help form and enrich soil.
Thus, the answer is (C).
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