When buying packaged food, we should pay attention to the nutritional components marked on the food packaging, as well as additives, production date, shelf life, manufacturers and manufacturers' addresses. Buy food that has passed quarantine inspection. Buying meat depends on whether it is stamped with the seal of the quarantine department, and buying pork that has passed the quarantine inspection. Fresh vegetables that can't be eaten are kept fresh in the refrigerator; Don't eat bad food. In addition, homemade yogurt at home. Because yogurt contains lactic acid bacteria and can be used as a strain, it only meets the requirements: ① ③ ⑤.

Therefore, choose: d.