Which of the Following Statements About Correlation Is True

Multiple Choice

Which of the following statements about correlation is true?

A) Positive correlations are meaningful,but negative ones are not.
B) Negative correlations are weak,but positive ones are strong.
C) Correlations close to +1.0 or -1.0 are strong,while correlations close to 0 are weak.
D) A strong correlation is indicative of a causal relationship between variables.