Final answer:
Among the listed drinks, Rob Roy and Bellini contain alcohol, whereas Roy Rogers and Arnold Palmer do not.
Step-by-step explanation:
The drinks that contain alcohol among the options provided are a) Rob Roy and d) Bellini. The Rob Roy is a cocktail made with Scotch whisky, vermouth, and Angostura bitters. The Bellini is a sparkling cocktail made from Prosecco and peach purée. On the other hand, the b) Roy Rogers is a non-alcoholic beverage composed of cola and grenadine, topped with a maraschino cherry. The c) Arnold Palmer is also non-alcoholic, made by mixing equal parts of iced tea and lemonade.