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:
I needed 5 of these to complete wifi installation in a condo building, they installed easily and are working perfectly.

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