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:
Clear, Fast, And nice bokeh! Would have given it 5 stars if it weren't for some slight vignette on lower f numbers, as well as no auto focus capability with my d3100 (which i was aware of when buying it) All in all, definitely worth the price!

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