Question

Probiotics usually consist of: 
(A) Lactobacillus 
(B) Saccharomyces boulardii 
(C) Bifidobacterium 
(D) Zymomonas 
Choose the correct answer from the options given below:

• A. (A), (B) and (D) only
• B. (A), (B) and (C) only
• C. (A), (B), (C) and (D)
• D. (B), (C) and (D) only

Hint:

Common probiotics include Lactobacillus, Saccharomyces boulardii, and Bifidobacterium, which are used for digestive health.

Answer 1

The Correct Option is B

Step 1: Defining probiotics.
Probiotics are living microorganisms that, when ingested in sufficient quantities, offer health advantages. Common probiotic strains include Lactobacillus, Saccharomyces boulardii, and Bifidobacterium. Zymomonas is not generally utilized as a probiotic.
Step 2: Final determination.
Therefore, the correct selections are exclusively (A), (B), and (C).
Final Answer: \[ \boxed{2. (A), (B) and (C) only}\]