Final answer:
Artificial sweeteners are suitable for individuals unable to consume sugar but should be used moderately.
Step-by-step explanation:
The main idea of the text is option B) Artificial sweeteners are suitable for individuals unable to consume sugar but should be used moderately. The text states that artificial sweeteners are useful for people with diabetes or other medical conditions that require them to control their carbohydrate intake. It also mentions that these sweeteners are noncaloric or used in small quantities, meaning they do not add significantly to the caloric value of food. Therefore, artificial sweeteners can be a substitute for sugar for certain individuals, but it is important to use them in moderation.