Rich is a cash basis self-employed air-conditioning repairmen with current year gross business receipts of $20,000. Rich's cash disbursements were as follows:

Air conditioning parts	$2,500
Yellow Pages listing	2,000
Estimated federal income taxes on self-employment income	1,000
Business long-distance telephone calls	400
Charitable contributions	200

What amount should Rich report as net self-employment income? (Points : 4)

$15,100 14,900 14,100 13,900