" I thought I 'd make sure you were feeling all right . " Sanzo 's eyes narrowed in a frown . Hakkai 's brow furrowed slightly as he continued , watching Sanzo intently .

Q with options: Give answer the following question using evidence from the above passage: What is the reason for Sanzo 's eyes narrowing ?
Options are: I. His brow was sweaty .. II. None of the above choices .. III. Sanzo did n't believe Hakkai .. IV. He was trying to focus his eyes better ..
III.