Assertion $(A)$: When a vehicle takes a turn on the road,it travels along a curved path. Reason $(R)$: In a curved path,the velocity of the vehicle remains the same.

• A
  Both $(A)$ and $(R)$ are true and $(R)$ is the correct explanation of $(A)$
• B
  Both $(A)$ and $(R)$ are true and $(R)$ is not the correct explanation of $(A)$
• C
  $(A)$ is true,but $(R)$ is not true
• D
  $(A)$ is not true,but $(R)$ is true