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: None of the above choices .
Option 1: His brow was sweaty .
Option 2: He was trying to focus his eyes better .
Option 3: Sanzo was dubious about hakkai 's intent .
Answer: 3