Select the most appropriate opening for a direct claim letter when the remedy is obvious.

A. Please consider my request. I recently purchased a Stratus Balance Ball through your website. The box came yesterday, but there was no Balance Ball inside. I would like a refund, please
B. I recently purchased a Stratus Balance Ball. The box arrived empty yesterday. When I opened the box, I expected to find the ball, but there was only a hand pump in the box. Because I did not receive the actual Balance Ball, I would like a full refund.
C. Please send me a full refund for the Stratus Balance Ball I recently purchased on your website. Yesterday, the Balance Ball box arrived empty