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:
The bicycle was delivered in a very timely fashion. My grandson who is four years old absolutely loves this bike. It was very easy to assemble and thus enjoyed almost immediately.

A very,easy positive experience for all involved.

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