Two events AAA and BBB satisfy P(A∣B)=P(B∣A)P(A|B) = P(B|A)P(A∣B)=P(B∣A). Which of the following is definitely true?
P(A)=P(B)P(A) = P(B)P(A)=P(B)
AAA and BBB are independent
A=BA = BA=B
P(A∩B)=0P(A \cap B) = 0P(A∩B)=0