Instruction: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
The crumb-catcher is a great bonus.  This product could be improved by adding more slice guides, but I accommodate that by turning the loaf around.  Also, the slices are just a bit thicker than I would prefer.

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