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:
Exactly what my son wanted for his birthday. The only issue that I have with it is that it doesn't seem to hold air very long.

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