Instruction: Assess the user's sentiment in the provided review and select the appropriate sentiment option from the list as the answer.

Input:
The plug has a base that is too big to use with a device in a case.  Not a problem unique to this headphone but one a buyer should be aware of.  Seems sturdy and well built.  Haven't used them long though.

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