Instruction: Assess the user's sentiment in the provided review and select the appropriate sentiment option from the list as the answer.

Input:
I ordered the yellow 45cm Pro-Series ball from ToysNGamesEtc. When it arrived, the package included the deflated ball, an inflation hookup, pins to plug the hole, and a tool to remove the pins. No instructions. No measuring tape. But fine, as long as the ball itself does the job, we could do without the missing items. Fully inflated, it turns out the ball is 30+cm shorter in diameter than it should be--I measured the circumference and divided by Pi, and just in case my math was off I also placed it against a wall, placed a box on the other side, and measured the space in between. It was 111cm. My son is 4'3"--we were worried this would be too big for him since the lower height range is 4'7", but instead his knees are pushed up under his chin. And on top of that, it's NOT a Pro-Series. Comparing what I received to Thera-Band's website, it's their standard ball.

RETURN.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: E: very negative