A Proponent of ESP Claims That ESP Shows Up Only

Multiple Choice

A proponent of ESP claims that ESP shows up only when the vibrations are right and that there is no way to know whether the vibrations are right except to see whether ESP shows up. What is wrong with this theory from a scientific standpoint?

A) It relies too heavily on operational definitions.
B) It relies too heavily on negative correlations.
C) It is not falsifiable.
D) It has too many dependent variables.