Loan B Final Payment . Co-Borrowers shall pay to Horizon a payment in the amount of One Hundred Fifty Thousand Dollars ($150,000) (the “ Loan B Final Payment ”) upon the earlier of (A) payment in full of the principal balance of Term Loan B, (B) an Event of Default and demand by Horizon in writing of payment in full of Term Loan B or (C) the Term Loan Maturity Date, as applicable.