What are the ingredients for a Kids chocolate shake?

The correct choice for the ingredients of a Kids chocolate shake is indeed to use 1 scoop of chocolate and fill the shake to the 5oz line. This specific amount is designed for a smaller serving that caters to children's portion sizes while still providing the rich chocolate flavor they enjoy.

Utilizing 1 scoop keeps the drink appropriately sized for kids, ensuring it’s not overwhelming in both taste and quantity. Filling to the 5oz line aligns with the intent of serving a smaller and manageable shake, making it both suitable and safe for children.

Other combinations in the choices either suggest a larger quantity of chocolate than is ideal for children or exceed the appropriate size for a kids' shake, which does not account for their smaller appetites and preferences. By focusing on balance and portion control, the selected answer promotes a kid-friendly version of the classic chocolate shake.