How Did Observations at the Sudbury Neutrino Observatory Solve the Solar

Multiple Choice

How did observations at the Sudbury Neutrino Observatory solve the solar neutrino problem?

A) They showed that the "missing neutrinos" had changed into a different type.
B) They showed that other experiments had mis-counted the number of solar neutrinos.
C) They showed that models for the number of neutrinos produced by the Sun were wrong.
D) They showed that neutrinos were not escaping from the core of the Sun.