Final answer:
The correct answer to the sugar level options for milk foam teas is 'No Sugar, Half Sugar, Full Sugar', allowing customization to personal taste.
Step-by-step explanation:
The question appears to be about the sugar levels suitable for different types of teas when preparing milk foam-based beverages. The correct answer would be B) No Sugar, Half Sugar, Full Sugar. These options refer to the amount of sweetness that can be added to the milk foam for Green, Black, Earl Grey, and Oolong Earl Grey teas. Typically, tea drinkers have different preferences for sugar levels, and these options are commonly found in cafés and tea shops where customers can personalize their drinks to their own taste.