Context: " 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 .
Question: What is the reason for Sanzo 's eyes narrowing ?
Option 0: His brow was sweaty .
Option 1: None of the above choices .
Option 2: Sanzo did n't believe Hakkai .
Option 3: He was trying to focus his eyes better .
Answer: 2