Answer: Option A
Explanation:
The more hot the star is the more blue it looks. The cooler stars are blue in color and temperature is approximately 11,000 Kelvin and it gives Rigel.
It contains 40,000 times the energy of the Sun. The stars are blue in color because of its surface which appears to be blue.
Whereas, the stars that are colder appears red in color. The colder stars appears to be red in color. So, the star having greater temperature appears blue and cooler star appears.
