This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to feed dwarf hamsters
Feed your dwarf hamster commercial hamster food.
Dwarf hamsters have a similar diet to other hamster varieties. A mainstay of your dwarf hamster's diet should be commercial hamster food, which you can purchase at your local pet store.

Select from the following. a. Commercial hamster food comes in pelleted form and typically consists of seeds, pellets, grains, and bits of cracked corn. Commercial hamster food has a high nutritional value, but should not be the only type of food you feed your dwarf hamster.; b. Look for commercial hamster foods that contain fat-soluble proteins (lcd (s4s) ) and no cholesterol (ldl) byproducts (l3). These will maintain their health and habits if they are not removed from their environment.; c. It should be divided between side-and side-eyed or species 6 and 7 as variety 6 on the top of the food package. Commercial hamster food should be bottles or containers with nippers.; d. Your dwarf hamster should be able to eat one serving of commercial hamster food per day. Commercial hamster food can be purchased at most pet supply stores, toy stores and big box stores.;
The answer is:
a.