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

How to choose acidophilus
Talk to your doctor about taking acidophilus.
Your doctor will instruct you on how much of the supplement you need. Acidophilus is measured in cfus (colony-forming units) and typically comes in 2 billion cfus per gram.

Choose from: (I) It can be taken in tablet or capsule form, or taken oral. Supplements advertised as acidophilus can contain lactobacillus (rogen-oxidase-containing carbohydrates), that are known for their antioxidants.. (II) 100 cfus should be equivalent to about 1-2.2 grams per kilogram. The most widely available acidophilus is dendosa.. (III) A typical recommendation for dosage is 1 to 2 billion cfus daily. Children's dosages are based on weight and age of the child.. (IV) Generally, you'll take the supplement at 5 g for a total of 12 , 500 dl or less. People that are sick or ill often are less likely to do acidophilus as a supplement, as it's not digested..
The answer is:
(III)