The author mentions "study of UFOs, dianetics" (line 29) most likely in order to
A．(A) give an example of schools of belief that fail to make sufficiently truthful predictions
B．(B) cite sciences which have failed to gain popular support by making unpopular predictions
C．(C) identify superstitions whose predictive strength is inexplicably consistent
D．(D) provide cases of schools of belief whose predictions lack firm evidence
E．(E) gain authoritative support for the notion that that a universal suspension of belief may be warranted