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

Input:
Very disappointed in WigWam here.  They felt nice inside, I was happy.  I put them on.  One sock kept falling down all day.  Just the one sock.  Same sock, over and over.  It was torture.
Back to spending more on Smrtwl.  Worth it.

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