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

Input:
Unstable. My granddaughter has tipped over on this many times. Now she only rides it in my basement in a very small space where she can't go fast and limits opportunities for it tipping over.

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