following list of liability balances at December 31, 2015.

Accounts Payable	$13,000
Employee Health Insurance Payable	$450
Employee Income Tax Payable	$400
Estimated Warranty Payable	$600
Long-Term Notes Payable (Due 2019)	$33,000
FICA-OASDI Taxes Payable	$560
Sales Tax Payable	$370
Mortgage Payable (Due 2020)	$6,000
Bonds Payable (Due 2021)	$53,000
Current Portion of Long-Term Notes Payable	$3,500

What is the total amount of current liabilities?

$18,880

$14,380

$14,980

$15,380