If P(A)=0.3P(A) = 0.3P(A)=0.3, P(B)=0.4P(B) = 0.4P(B)=0.4, and A,BA, BA,B are disjoint, what is P(A∣A∪B)P(A | A \cup B)P(A∣A∪B)?
3/7
1/2
3/4
4/7