Chang Corporation, a calendar year S corporation has tax-exempt income of $4,000, net capital gain of $3,500, dividend income of $2,500, and ordinary business loss of $8,500 for the current year. Its sole shareholder, Peter, had a stock basis of $10,000 on January 1. He received a cash distribution during the year from the AAA account of $16,000. What is Peter's basis in his stock at the end of the year? O$(4,500) O $20,000 $0 O $10,000