If P(A)=0.4,P(B)=0.5P(A)=0.4, P(B)=0.5P(A)=0.4,P(B)=0.5, and A,BA, BA,B are disjoint, what is P(A∣A∪B)P(A|A \cup B)P(A∣A∪B)?
0.40.40.4
0.80.80.8
0.440.440.44
0.50.50.5