" 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 .
According to the above context, choose the best option to answer the following question.
Question: Why would Sanzo frown in response to Hakkai making sure he felt all right ?
Options:
A. Hokkai may have thought it 's none of Sanzo 's business .
B. Sanzo may have watched none of Hokkai 's business .
C. Sanzo may have thought it 's none of Hokkai 's business .
D. None of the above choices .


C