Task: Sentiment_Analysis
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:
It's a mechanical A/V selector switch RCA cable connectors fit snugly and inside connection pass signal with no apparent degradation.  Unit is heftier that others, a good thing.

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