Recent Solar Neutrino Experiments Have Confirmed the Suspicion That the Explanation

Recent solar neutrino experiments have confirmed the suspicion that the explanation for the apparent shortfall in neutrino detection rates over the last 30 years is that:

A) the Sun does indeed produce only 1/3 of that predicted by earlier theoretical models; these models require major modification.
B) 2/3 of the neutrinos from the Sun are absorbed by material between the Sun and Earth.
C) 2/3 of the solar neutrinos transform into types of neutrinos that were undetectable by old detection techniques.
D) the detectors were faulty; 2/3 of the neutrinos were missed by the detectors.