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

Input:
I bought these two SD cards to be used in my Raspberry Pi Zero W, as well as my Raspberry Pi 2 Model B. They work flawlessly, and are pretty fast to top it off. I have had no problems having them work with both Pi models, and served their purpose.

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