Which food supplies only discretionary kcalories? a. bagel b. peanut butter c. grape jelly d. raisins?

Hello!

Grape Jelly supplies only discretionary kcalories. 

Discretionary kcalories are the ones that are ingested not to meet nutritionary requirements but to maintain weight. Foods with only discretionary kcalories do not supply nutrients but only supply energy.

Looking at the different foods on the list, Bagels, Peanut Butter and Raisins supply nutrients such as Calcium, Vitamin B6, and Proteins, but Grape Jelly doesn't have any nutritional value other than adding kcalories. That's why Grape Jelly only supplies discretionary kcalories.