If P(A∣B)=0.2P(A|B) = 0.2P(A∣B)=0.2 and P(B∣A)=0.5P(B|A) = 0.5P(B∣A)=0.5, what is the ratio of P(A)P(A)P(A) to P(B)P(B)P(B)?
2:5
5:2
1:1
0.1