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:
These are good headphones, but I have a gripe with them, so not great.  I don't use earbuds because they always fall out of my hear eventually.  Apple earbuds stay in my ear, but they die within weeks due to sweat.  These sony headphones are a great design, however they're far too light and flexible!  I have an average sized head, but the headphones need to be stiffer and tighter, and not so flexible.  The earbuds don't push into your heads well enough, so you don't get quality sounds, and they move around a little.  They're still better than so many other headphones I've used to run, but they're not perfect.  I used to have an older version, the sony sport over the head earphones that were yellow.  I liked those better.

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