Final answer:
Glass bowls are safe to use in a microwave oven, while dishes with silver trim and aluminum pans are not.
Step-by-step explanation:
The type of cookware that is safe to use in a microwave oven is c. Glass bowls.
When microwaving food, it is important to use microwave-safe cookware to avoid any potential hazards. Glass bowls are typically made from a special type of glass that can withstand the heat generated by microwaves. These bowls do not contain any metals or materials that could cause sparks or explosions in the microwave.
On the other hand, a. Dishes with silver trim and b. Aluminum pans are not safe to use in a microwave oven. Silver trim or aluminum pans can cause the microwave to create sparks, which can be dangerous and potentially damage the microwave.
Therefore, the correct answer is c. Glass bowls.