Mad cow disease is caused by deformed proteins called prions. The disease is spread when meat from an infected cow is eaten. Prions can cause normal proteins to become deformed, producing more prions. After a few years, the brain of an infected person or cow looks like a sponge full of holes. Are prions considered organisms? Group of answer choices

Yes, because they can cause disease

No, because they can’t make their own food

No, because they are not made of cells

Yes, because they can make more of themselves