Match each of the following types of causal relationships with the most appropriate example from the list below. ?

_____ The population of certain species of animals decreases as logging in wilderness areas increases.

_____ The sales of sports cars increase as the school year comes to a close in June.

_____ The price of bread and canola oil both increase sharply after the prairies experience a drought during the growing season.

_____ Demand for consumer goods increases as the unemployment rate decreases.

 a. Cause-and-effect relationship

b. Accidental relationship

c. Common-cause factor

d. Reverse cause-and-effect relationship

e. Presumed relationship