Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
It is a very simple device that works well, making it easy to string or adjust your Excalibur crossbow very easy.  You may not need it often but it's a helpful tool to have.

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