In Measuring Solar Neutrinos, What Would One Expect for the Variation

In measuring solar neutrinos, what would one expect for the variation in the rate of detection in any instrument?

A) The detection rate would rise at sunset and sunrise because solar neutrinos are gravitationally deflected by Earth to increase this rate at these times.
B) The rate would remain constant, day and night, because neutrinos pass very easily through Earth.
C) The instrument would only detect neutrinos in the daytime because Earth would block these particles during the night.
D) The instrument would measure more neutrinos during the night than in daytime because solar neutrinos would react with nuclei in Earth to produce more neutrinos at that time.