Answer:
b. change in ticket sales for the existing roller coaster
c. change in ticket sales for the boat ride
d. change in food and beverage sales
Step-by-step explanation:
The side effects that along with the new roller coaster is as follows:
a. There should be the change in the sale of the ticket with respect to the existing roller coaster
b. There should be the change in the sale of the ticket with respect to the boat ride
c. Also, there should be the change in the sale for food & beverages
So the above represent the side effects
Hence, b, c and d are the correct options