Final answer:
Freddy's Concretes are customizable frozen custard desserts allowing customers to choose from vanilla or chocolate custard, or a mix of both, combined with various toppings and candies, making the statement true.
Step-by-step explanation:
The statement that 'A Freddy's Concrete is made using the Guest's choice of our delicious vanilla, chocolate, or half and half frozen custard lightly blended with their choice of our delicious toppings and candies' is generally a TRUE statement. Freddy's is known for their frozen custard Concretes, which allow customers to customize their orders with various choices of custard flavors, such as vanilla and chocolate, and an assortment of toppings and candies.