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

Input:
It is a great product, i'm very happy with this buy. It has an exellent technician support and no problems with the installations.

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