Based on 1988 census data for the 50 States in the United Stares, the correlation between the number of churches per State and the number of violent crimes per State was 0.85. We can conclude that:

A.There is a causal relationship between the number of churches and the number of violent crimes committed in a city.

B.The correlation is partly spurious because of the confounding variable of population size: both number of churches and number of violent crimes are related to the population size.

C.Since the data comes from a census, or nearly complete enumeration of the United States, there must be a causal relationship between the number of churches and the number of violent crimes.

D.The relationship is not causal because only correlations of +1 or -1 show causal relationships.