Which one of the following gives the members of the set Ac ∩ ∩ B ∩ ∩ C?

Which one of the following gives the members of the set Ac $\cap$ B $\cap$ C?

Answer Details

A1 = Elements in the universal set but not in A = {s, w, x, y, z}
B = {r, s. t, u}
C = {t, u, v, w, x}
A1 n B n C = elements common to the three sets = none = empty set = Φ