(c) you must pay CK-12 any unpaid amount that was due prior to termination. and (d) all payment obligations accrued prior to termination and Sections 4.2, 4.3, 4.4, 5, 8.2, 8.3, 12.3, 13, 14, 15, 16 and 17 will survive.</li> <li>12.4 <b>Modification of the Platform</b>.