Electrical, chemical, industrial, and mechanical engineering curricula were studied. It was found that some students took no statistics, some took one semester, and others took two semesters. Consider the following events:

A: Some statistics is taken

B: Electrical and industrial engineers

C: Chemical engineers Use Venn diagrams and shade the areas representing the following events:

(a) (A ∩ P)';

(b) (A u BY;

(c) (A ∩ C) U B.