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

Input:
Box came. It seems like they repackaged these from a larger bulk order. Others have said there have been old/non working warmers but all the one's I have opened have worked.

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