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:
This light is fantastic. I tried various other lights before I stumbled across this one, and it blows the others away.  I combine it with a Brooks Nightlife vest, and feel much safer when running at night.  This light is surprisingly small and light yet so powerfully bright (note that it is not a lamp, so it won't help you see at night, at least mine doesn't--but it helps ME be seen!).  There is a noticeable improvement with other pedestrians/cars noticing me much, much sooner than with the other lights I have tried.  I use it for walking my dogs also.  Plus Road Id is a great company and shipped this really quickly!

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