Read the following sentence-
"No matter what you believe about the issue, it is critical to take into account that nutritionists advise that foods and drinks that have artificial sweeteners should be consumed in moderation."
By reading this sentence, what does a "nutritionist" most likely do?
a. They sample different foods and drinks
b. They give advice to people on how food affects health
c. They create new types of food and drinks for companies
d. They build scientific facilities for research