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:
Tiffen filters have been around for years so must have stood market forces through time.
I always wanted one so bought this and fitted it to my son's 50mm lens.
Looks great and comes in na beautiful presentation case.

Stan Chun
Wellington
New Zealand

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