Instruction: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
I just had purchased a CHROMEBOOK.  Thus this book was interesting and helpful.  On occasion I skim through the book looking for info I missed or didn't  have a need for during earlier reading.

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