Instruction: Analyze the user's review text and determine the overall sentiment expressed, then choose the corresponding sentiment option from the provided list (A: very positive, B: positive, C: neutral, D: negative, E: very negative) based on the identified sentiment.

Input:
The sound from these speakers is terrific; however, I encountered constant background noise from both the base unit and the small speakers -crackling, humming, repeating thumps from the normal use of the computer.  Company techies could not solve; Amazon replaced the units and I had same experience with second set.

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