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

Input:
All i have to say is W0W! I just today walked into kmart looking for a sub woofer and i find this speaker pack (same one as product) for only 20 dollars. im thinking to myself "these are pretty small and cheap, but why not give em' a try". Easy assembly, i set them up in about 50 seconds out of the box, and i was blown away. The main speakers are no larger than a deodorant stick and the bass is no larger than a stack of 10 dvd cases, and let me tell ya, theres a lot of power in these things.

Pros: Great sound, loud and small.

Cons: When sound is turned up very high, the bass is a bit distorted.

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