Assertion: A needle placed carefully on the surface of the water may float, whereas a ball of the same material will always sink.Reason: The buoyancy of an object depends both on the material and shape of the object

• A. Both assertion and reason are true and the reason is the correct explanation of the assertion
• B. Both assertion and reason are true but the reason is not the correct explanation of the assertion
• C. Assertion is true but the reason is false
• D. Assertion and reason is false