Charles is a single person, age 35, with no dependents. In 2019, Charles has gross income of $75,000 from his sole proprietorship. Charles also incurs $80,000 of deductible business expenses in connection with his proprietorship. He has interest and dividend income of $22,000. Charles has $7,000 of itemized deductions. Charles's taxable income is 
A) $6, 650. 
B) $17,000. 
C) $12, 950. 
D) $10, 700.