The correct option is B Moon
Objects which do not emit light of their own are called non−luminous objects.
Objects that give out or emit light of their own are called as luminous objects.
Moon is a non-luminous object because it does not emit its own light and glows by reflecting the light of the sun.
Sun, Bulb and candle emit their own light and hence, are luminous objects.
Hence, the correct answer is OPTION B.