The typical share-save scheme is a regular savings plan that gives employees the opportunity to purchase shares in 3.5 or 7 years time, should they choose to exercise the purchase option, at a discounted price fixed before the saving period starts. In addition to potential financial gains, the employee also has the opportunity to participate in future company development through the acquisition of shares. The employee does not have to pay income tax on any gains made on the exercise of the option to buy shares, though there may be a liability to capital gains tax if the shares are sold and the resulting gains cause that particular employees level of capital gains liability to exceed the annual exempt amount.

Question: Employees usually exercise the option to sell their shares at the end of the saving period.
Options:
A. true, B. false, C. uncertain
Answer: "C"