In a Modern Neutrino Detector,neutrinos

In a modern neutrino detector,neutrinos:

A) are detected directly by photomultipliers that emit an electrical signal when struck by a neutrino.
B) strike water molecules, converting them into molecules of heavy water that then sink to the bottom of the tank.
C) cause reactions that emit Cerenkov radiation that is then detected with photomultipliers.
D) which have electric charge, are focused by a series of magnets to produce an intense beam that can be more easily detected by conventional detectors.