Given P(A)=0.5P(A) = 0.5P(A)=0.5, P(B)=0.25P(B) = 0.25P(B)=0.25, and P(B∣A)=0.4P(B|A) = 0.4P(B∣A)=0.4, find P(A∣B)P(A|B)P(A∣B).
0.80
0.40
0.50
0.20