Answer :
Final answer:
Small, pellet-like black droppings in a food storage area are most likely caused by mice, as their waste is pellet-shaped and often found where food is stored. a) Mice
Explanation:
The presence of small, pellet-like black droppings in a food storage room is an indicator of a pest infestation. Based on the description, this is most likely a sign of mice activity. Mice produce pellet-shaped droppings that are often found in places where food is stored. On the other hand, the presence of insects like cockroaches, ants, and termites tends to be indicated by different signs. Cockroaches leave behind a different type of waste, which looks like coffee grounds or pepper, and their droppings are smaller than those of mice. Termites tend to leave behind wood-colored pellets, which are a sign of their wood-eating habits, while ants are less likely to leave noticeable droppings in storage areas.