Which statement about pillbugs and sowbugs is true?

• A. They feed primarily on living plant matter and are common indoor fabric pests.
• B. They feed primarily on decaying organic matter and are occasional indoor pests of certain fabrics.
• C. They do not feed on decaying organic matter and are never pests indoors.
• D. They feed primarily on decaying organic matter and are not pests of fabrics indoors.

Answer: (D)

Pillbugs and sowbugs are detritivores that thrive on decaying organic matter rather than living plants. They’re crustaceans, not textile pests, and they don’t feed on fabrics indoors. You’ll typically find them in damp, dark places like under logs, mulch, or in basements, where moisture supports their decaying-food diet. That’s why a statement that they primarily feed on decaying organic matter and are not pests of fabrics indoors is the best fit.

The other ideas would misstate what they eat or their indoor impact: they don’t rely on living plant matter, and while they may wander indoors, they aren’t considered fabric pests.