Which sauce is paired with fish in the context provided?

Lemon Butter Sauce is a classic pairing with fish due to its light, zesty flavor that complements the delicate taste of seafood without overpowering it. The acidity from the lemon helps to enhance the flavors of the fish, while the butter adds a rich, silky texture that makes the dish more enjoyable. This sauce often incorporates fresh herbs, which can also provide additional freshness and complexity.

In contrast, teriyaki sauce, while it can be used with fish, has a sweeter soy sauce base that may not always highlight the fish's natural flavors as effectively as a lemon butter sauce does. Alfredo sauce tends to be heavy and creamy, which is more suited to pasta dishes rather than fish. Barbecue sauce, typically robust and smoky, is more commonly associated with meats, making it a less traditional option for fish pairings.