B. his first name or nickname and his favorite music.
Explanation:
The only information that Ollie should give to an estranger is his name or nickname and his favorite music. He should not provide information about his location or where people can find him. That is why he should not say his school, city, or age since this can make him a target.
Follow a food guide. For example, in Canada we have Canada's Food Guide that lists recommended foods in order to meet nutritional requirements for different ages and genders. Hope this helps!
