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:
I purchased this from Amazon a while back and I have always been meaning to upgrade my memory.  I purchased a Compaq 5310US in December of 2001 and it was a little after the time that Windows XP was released, so hardware in computers was reliable, but not sufficient to what would be coming in the next few years.  I have upgraded my Compaq PC to the hardware standards to this date.  The last thing I did was upgrade the RAM in it.  Once I installed it, turned on my machine.  I immediately saw a difference.  I noticed that boot times are quicker, desktop loading is quicker, and more programs can be run without computer slow-downs.

I recommend this if you are looking to start upgrading your computer.

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