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

Input:
I have had many headphones over the years with some costing $100's and others being cheap. This is the first set of over-the-ear headphones I have had that are both very good and not very expensive. These Sony's have solid bass without being muddy and well balanced highs without being too bright. I like them and highly recommend them. If you have SRS audio lab on your computer, you can watch movies while listening to these headphones in simulated surround sound and disturb no one. Try watching The Matrix with these on.

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