What describes the appearance of American wheat beer?

The appearance of American wheat beer is characterized by its haziness and tendency to form a substantial head. This haziness often results from the use of a significant amount of wheat in the brewing process, as well as the yeast and proteins suspended in the beer. The proteins from the wheat create a cloudy appearance when combined with the yeast, leading to the distinctive hazy look that many American wheat beers have.

Additionally, these beers typically exhibit good carbonation, which contributes to the formation of a big, frothy head when poured. This head is important for both the visual appeal and the texture of the beer, enhancing the drinking experience. The presence of a robust head also helps to capture and release the beer's aromas, further enriching the tasting experience.

The other descriptions do not accurately capture the typical characteristics of American wheat beers. They may describe either styles that are not wheat-based or fail to account for the expected visual and textural elements that define this particular category.