The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Answer is B.
Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
Therefore, both Assertion and Reason are correct but Reason is not the correct explanation for Assertion as they are interchangeably given.