Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
I recently purchased a pair of Polk Audio RC65i two way in wall speakers to compliment my system.  My room dictated that I use in wall speakers - no choice.  They are nice sounding speakers - don't know if the room is too open but the rear surround (where they are) is weak at best - I have all Polk Audio speakers in my system so I figured these would go nicely - they were on sale so I went for them.  They would probably sound better in a small room with better acoustics.  The installion was straight forward, I had to notch wall studs to install them, not a big deal.  Overall they are good speakers, great value for the price - guess I will have to make my room smaller to get the full effect of the rear surrounds - PS the devlivery was fantastic - like next day service keep up the great work.

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