Which celestial body looks darkest in the night sky A arcturus B Altair C Vega D Xuanyuan XIV

Choose D, arcturus is the fourth brightest star in the whole day, with an apparent magnitude of -0.03, Altair is the first 12 bright star in the whole day, with an apparent magnitude of 0.77, Vega is the fifth brightest star in the whole day, with an apparent magnitude of 0.03, and Xuanyuan XIV is the second 1 bright star and the darkest first star, with an apparent magnitude of/.