20. Which of the following is true?
a) All yogurts are made with L. Bulgaricus and S. Thermophilus
b) Commercial yogurt is fermented for 4 hours
c) Yogurt with L. Bulgaricus and S. Thermophilus can help h. pylori ulcers and aspirin-related ulcers
d) Anyone who is lactose intolerant can tolerate yogurt