Instruction: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
We also bought this bike rack because of the price and it will hold 4 bikes.  It could be improved on the Hitch end but it was not bad.  It does tend to loosen at highway speeds but we use it with the larger attachment for class 3 hitches.  It kept our bikes from damaging our Suburban.  We use it for adult bikes and also several smaller BMX bikes.  It is more challenging to get the BMXs on.  One trick is to make sure you swing the arm down to mount the one inside bike, then tilt it back up for the other three.  Also use a wrench and tighten the hitch bolt very tight with the lock washer or it will loosen on the highway. We also bought a big Schwin cable lock to run through the bike frames for security while parked.

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