A correlation of r = 0.79 is found between the number of burglaries and the number of police employed by a city. Which of the following is true?
A. Burglaries must be the cause of more police.
B. There is a pretty strong positive linear relationship between the number of burglaries and the number of police.
C. Population size of the city is a possible lurking variable that is "behind" this relationship.
D. Both B and C are true.
E. None of the above.