Assertion : Two similar trains are moving along the equatorial line with the same speed but in opposite direction. They will exert equal pressure on the rails. Reason : In uniform circular motion the magnitude of acceleration remains constant but the direction continuously changes.

• A. If both assertion and reason are true and the reason is the correct explanation of the assertion.  
• B. If both assertion and reason are true but reason is not the correct explanation of the assertion.  
• C. If assertion is true but reason is false.
• D. If the assertion and reason both are false.  
• E. If assertion is false but reason is true.