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

Input:
THE CONCEPT IS GREAT BUT UNFORTUNATELY THE PRODUCT FAILED WITHT HE FIRST USE. tHE CRADLES FOR THE BIKE BROKE OFF AND WHEN I CALLED BACK TO THE MANUFACTURER, THEY SENT OUT A NEW ONE AND IT ALSO FAILED ON THE FIRST USE. THE CRADLES ARE MADE OF A HARD PLASTIC WHICH DOES NOT HAVE MUCH FLEXABILITY TO IT AND MY ROAD BIKES HAVE A WIDER CROSS MEMBER IN THE FRONT AND THIS MUST PUT TOO MUCH PRESSURE ON THE CRADLE. tHIS IS NOT A PROBLEM WITH MY sARIS BIKE RACK WHICH IS 15 YRS OLD. mANY OF THE NEWER BIKES DO NOT HAVE THE NARROW TUBES THROUGHOUT THE FRAME ANYMORE AND SO IF YOU ARE CARRYING OLDER BIKE IT WOULD WORK WELL BUT ID YOU HAVE NEWER AERODYNAMIC STYLES OR HIGHER END BIKES THEY WILL BREAK. iF THEY CHANGED THE PLASTIC TO A MORE FLEXIBLE RUBBER STYLE, IT WOULD BE A GREAT ITEM TO CARRY BIKES WHEN YOU ARE TOWING A TRAILER.

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