【单选题】

Information on behavioral deficits in rats is also______to humans, but there is an enormous step between the psychology of the two species, so we must be careful about declaring such data______.
A．(A) applied… invalid

B．(B) extrapolated … dissimilar
C．(C) obscure … sound
D．(D) relevant … analogous
E．(E) inapplicable … similar