Answer:
The correct options are (i) and (ii) only
Step-by-step explanation:
Price discrimination raises the monopoly's profit otherwise they will choose to charge all the customers the same price.
Examples of price discriminations are:
Movie tickets; theaters charge a lower price for children and older citizens compared to other patrons.
Airplane Tickets; Airplane seats are sold at different prices, many airlines charge a lower price for a round trip ticket between 2cities.