Using demand and supply models, illustrate the shortage of rental properties (if any) and changes in rent from December quarter of 2022 to December quarter of 2023. (Note: Unlike Task 1 #1, here you do not need to use real data. As such, use p1 and q1 to represent the initial rent and quantity, respectively; and p2 and q2 as the new rent and quantity, respectively). (Task 2 relates to CRA #1, 4 and 5)