Which Statement Is False Relative to Recalled Optimal Precompetitive Anxiety

Which statement is false relative to recalled optimal precompetitive anxiety?

A) Correlations between actual and recalled optimal precompetitive anxiety are relatively high when measures are taken within two days of each other.
B) The recall method is most effective when a unidimensional measure of anxiety is used.
C) Research shows that the recall method of estimating optimal precompetitive anxiety is unreliable.
D) The recall method should not be used when anxiety is measured by the CSAI-2.