Question

a coworker brings you a bag of oatmeal in which he has found black specks. what is the most likely cause of those specks? the bag was left open and dirt and/or dust has settled on the oatmeal. the suppliers bulk bins have not been cleaned, and rust has built up in them. pests have entered the bag and left waste secretions in the oatmeal. oatmeal usually has black - spots on the flakes, so the cause is natural.

Explanation:

Pests are common in food - storage situations and their waste secretions can appear as black specks. Dirt/dust is less likely to be concentrated as black specks. Rust from bins would likely contaminate more uniformly and not just as small black specks. Oatmeal does not naturally have black spots on flakes.

Answer:

C. Pests have entered the bag and left waste secretions in the oatmeal.