5. None of the following shall have the effect of discharging or excusing performance under any contract, security or instrument, or give a party the right to unilaterally alter or terminate any contract, security or instrument:
a. The introduction of the Euro;
b. The tendering of Euros in connection with any obligation in compliance with subsection a. or b. of section 4 of this act;
c. The determining of the value of any obligation in compliance with subsection a. or b. of section 4 of this act; or
d. The calculating or determining of the subject or medium of payment of a contract, security or instrument with reference to interest rate or other basis that has been substituted or replaced due to the introduction of the Euro and is a commercially reasonable substitute and substantial equivalent.