Correct option is D
The correct option is: (d) A and R are both correct and R is the correct explanation for A.
Statement A: Our observation is true. Stars appear to move from east to west at night.
Reason R: This explains the observed phenomenon. The Earth actually rotates on its axis from west to east. Since we are on the Earth and rotating with it, the stars appear to move in the opposite direction (east to west) relative to us.
It's similar to how passengers in a moving car might feel like they are stationary while the scenery outside appears to move in the opposite direction.