Which star, located in the Orion constellation, is a red supergiant?

Betelgeuse is the correct answer because it is well-known as a red supergiant star located in the Orion constellation. Red supergiants are among the largest stars in the universe and are characterized by their extensive size, cool temperatures, and distinct reddish color. Betelgeuse is particularly notable due to its size and brightness, making it a prominent feature in the night sky, especially in the winter months when Orion is visible.

In contrast, Vega is a blue-white main-sequence star in the constellation Lyra, Regulus is a blue-white star found in Leo, and Deneb is a blue supergiant in Cygnus. None of these stars possess the characteristics of a red supergiant like Betelgeuse does, which solidifies Betelgeuse's unique position in the study of stellar classification and the characteristics of stars within the Orion constellation.