Max is self-employed and reports a net profit on Schedule C. During the tax year, he paid $4,850 for medical insurance. Assuming he meets all the requirements for the self-employed health insurance deduction, how should he report this on his tax return?

As a business expense on Schedule C.

As an adjustment to gross income on Form 1040.

As a medical expense on Schedule A.

As an adjustment to self-employment income on Schedule SE.