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:
We did not buy this for camping, but rather so we could do some work outside of the house during the summer.  Mosquitoes are so bad here that if you are outside for more than just a minute, you can end up with many many bites.  After a neighbor of ours became very ill with West Nile Virus we purchased a set of these nets.  The mosquitoes can occasionally get through, but there are very few bites in comparison.

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