Q: Fact 1: Earthworms are important deposit feeders that help form and enrich soil. Fact 2: Earthworms are terrific for plants and soil. Given the two facts above, earthworms are terrific for plants and are important what?

Choices:
(a). deposit feeders.
(b). more abundant.
(c). grounders.
(d). agriculture.
(e). Quality of life.
(f). the environment.
(g). dirt grubbers.
(h). bird enemies.
A:
(a).