Which of the following is correct regarding sunlight?

Question

a- it reaches us only after the sun has actually risen

b- it continues to reach us after the sun has actually set

c- it stops reaching us before the sun has actually set

d- it corresponds exactly to sunrise and sunset

Answer 1

b.  We continue to see sunlight after the sun has actually set because it is scattered to us by higher levels of the atmosphere which are still in direct sunlight.