Concept:Luminous objects are sources that emit light by themselves.
Explanation:An object is called luminous if it produces and releases its own light.
Examples include the Sun, a burning candle, and a glowing electric bulb.
Objects that do not emit light but become visible by reflecting light from luminous sources are called non-luminous objects.
The Moon is a common example of a non-luminous body because it only reflects sunlight.
Therefore, the correct description of a luminous object is one that gives out light of its own.
Answer:B. gives out light of its own