Discussing the merits of domesticated ducks, Chef A declares that the moulard is the leanest. Chef B counters that Muscovy duck is the leanest. Which chef is correct?

To determine which chef is correct regarding the leanest domesticated duck, we need to consider the characteristics of both the moulard and Muscovy ducks.

The **moulard duck** is a crossbreed usually between a Pekin and a Muscovy. It is known for its rich meat and relatively high fat content, making it a popular choice for dishes like duck confit.

The **Muscovy duck**, on the other hand, is known for being leaner compared to other domesticated duck breeds. Muscovy ducks can have a lower fat content and are often regarded as a healthier option when it comes to duck meat.

Given this information, **Chef B** is correct that the Muscovy duck is the leaner option compared to the moulard duck.

Therefore, the answer is:

B) Chef B is correct.