Two events AAA and BBB satisfy P(A)=0.3P(A) = 0.3P(A)=0.3, P(B)=0.4P(B) = 0.4P(B)=0.4, and P(A∩B)=0.1P(A \cap B) = 0.1P(A∩B)=0.1. Find P(Ac∣Bc)P(A^c | B^c)P(Ac∣Bc).
23\frac{2}{3}32
12\frac{1}{2}21
34\frac{3}{4}43
47\frac{4}{7}74