The correct answer is: C. make-whole call provision.
A make-whole call provision is a call provision that requires the issuer to pay the bondholders a premium if they call the bonds before maturity. The premium is designed to compensate the bondholders for the loss of interest they would have earned if the bonds had been held to maturity.
A super refund provision is a call provision that allows the issuer to call the bonds at any time, but requires them to pay the bondholders a premium that is greater than the premium required under a make-whole call provision.
A super put redemption is a put provision that allows the bondholders to put the bonds back to the issuer at any time, but requires them to pay the issuer a premium that is greater than the premium required under a standard put provision.
A super call provision is a call provision that allows the issuer to call the bonds at any time, but does not require them to pay the bondholders a premium.
In conclusion, the correct answer is C. make-whole call provision.