Ben bought poultry and vegetables, and kept them in separate bags. He thawed the poultry in the refrigerator. Before making vegetable stew and grilled chicken, he carefully washed the poultry and vegetables in two separate vessels. However, the next day,
Ben had food poisoning. What could be the possible reason for Ben’s food-borne illness?

A. washing the poultry
B. buying vegetables and poultry together
C .improper refrigeration
D. eating vegetables and poultry together