Section 3 of the Principal Act is amended as follows:

(a) by inserting the following definitions after the definition of business asset :

call option means a right, conferred by an agreement or arrangement, to acquire dutiable property;

call option assignment means the assignment of a right, under a put and call option, to acquire dutiable property;

(b) by inserting the following definitions after the definition of public unit trust scheme :

put and call option means an agreement or arrangement that provides for both a call option and a put option in respect of the same dutiable property;

put option means a right, conferred by an agreement or arrangement, to require a person to acquire dutiable property;