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 bought this for my sons bike. He has a bike with 16 inch tires. The kickstand was tight in the beginning and difficult for him but now it worked great. Will purchase again if i need one.

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