Answer:
City B
Step-by-step explanation:
The city that should have a bigger rise in house prices at the end of the 3 years holding all else constant should be City B because the house prices of CITY B will tend to rise more reason been that city B has inelastic housing supply which in turn will lead to the more inelastic city.
Therefore Suppose i believe that housing demand in both cities will rise by exactly 20% over the next 3 years CITY B should have a bigger rise in house prices at the end of the 3 years holding all else constant than CITY A