Answer:
alternative
Step-by-step explanation:
In this sentence, "alternative" best fits the blank because fresh fruit is being compared to cookies, but "fresh fruit is a healthy comparison to candy or cookies for dessert", is not grammatically correct, therefore "comparison" is not the correct answer.
To say that "fresh fruit is a healthy alternative to candy or cookies for desert", creates a true statement that properly compares fruit to candy/cookies, in a way that is grammatically correct.