Both chefs have valid points depending on the specific recipe and regional variations of bisque. Traditionally, a bisque is a rich, creamy soup that could be thickened using roux or rice.
- Chef A's assertion that roux is a traditional thickener for bisque is true as many classic French recipes use roux as a base for thickening.
- Chef B's claim that rice is used is also correct; many traditional bisques, particularly those from certain regions, incorporate rice to help thicken the soup.
Given that both methods are commonly used in different recipes, the best answer would be:
A) Both chefs are correct.