Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
Instructions very poor. Does not seem to have the adjustment range needed. Had to kick the stand into place. Made a hole in the ceiling. Placed it back less agessively, but, did not trust it for two bikes. Might be a good product, but, the instructions don't explain instullation well

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