The correct answer is option 'C', which states that the ice-cream man is selling both frosty-fizz and ice-cream. Let's break down the answer to understand why.

The Ice-Cream Man
The ice-cream man is a vendor who sells frozen treats to people, usually from a truck or cart. He is known for his jingling bells or music that attracts customers, particularly children, to come and buy his delicious treats.

What is Frosty-Fizz?
Frosty-fizz is a term used to describe a cold and refreshing beverage. It is often carbonated and can come in various flavors, such as lemon, orange, cola, or grape. Frosty-fizz is commonly enjoyed during hot summer days as a way to cool down and quench thirst.

What is Ice-Cream?
Ice-cream is a frozen dessert made from milk, cream, sugar, and various flavorings. It is typically served in a variety of forms, such as scoops, cones, sundaes, or milkshakes. Ice-cream is loved by people of all ages and is available in countless flavors, ranging from classics like vanilla and chocolate to more adventurous options like cookie dough or mint chocolate chip.

Both Frosty-Fizz and Ice-Cream
Based on the options provided, the correct answer is option 'C' - both frosty-fizz and ice-cream. This means that the ice-cream man sells both of these items to his customers. When children or adults approach the ice-cream truck, they have the option to choose between frosty-fizz, a refreshing beverage, or ice-cream, a frozen dessert.

Conclusion
In summary, the ice-cream man sells both frosty-fizz, a cold beverage, and ice-cream, a frozen dessert. Customers can choose between these two options when they visit the ice-cream truck. The ice-cream man's offerings provide a delightful treat for people of all ages, especially on hot summer days.

Of the above