Lola is filing her federal income tax with the 1040EZ form using the single filing status and nobody can claim her as a dependent. If she had wages, salaries, and tips of $39,700, taxable interest of $190, and no unemployment compensation, what should she enter on line 6 of the income section below?
A. $39,890
B. $30,540
C. $0
D. $21,190