Instruction: Given the user's review, identify the user's sentiment from the listed options. Answer using one of the options.

Input:
The Cobra CBRHGA1500 CB antenna is a great antenna that is easily tuned and will stay attached to the vehicle even at speeds of 80 mph.  The only reason I gave this a 4 star rating is that I paid for 2 day shipping along with a CB radio and this item did not get delivered until after my vacation.

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