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:
although they work and sound great there is one flaw you must go to plantronics web sit to download updated software to make them work properly

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