Assertion: A needle placed carefully on the surface of the water may float, whereas a ball of the same material will always sink.

• A. Reason: The buoyancy of an object depends both on the material and shape of the object
• B. Both assertion and reason are true and the reason is the correct explanation of the assertion
• C. Both assertion and reason are true but the reason is not the correct explanation of the assertion
• D. Assertion is true but the reason is false
• E. Assertion and reason is false