Answer:
False.
Explanation:
A call provision is a stipulation on the contract of a bond that allows the issuer to repurchase and retire debt security. A bind indenture states circumstances that can trigger a call, for example if underlying asset gets to a preset price.
In the question it stated that the bond holder can demand for a call. This is untrue as only the issuer has the right to request a call.
If the bondholder wants to dispose of his shares he will do so through the secondary market and not by requesting a call.