In each of the Exercises choose the correct answer:If A and B are events such that P(A|B) = P(B|A), then
(a) `AsubB`but `A!=B` (b) `A = B`(c) `AnnB=varphi` (d) `P (A) = P(B)`

Explanation

To solve the problem, we need to analyze the given condition: \( P(A|B) = P(B|A) \).

### Step-by-Step Solution:

1. **Understand the Definitions**:
- The conditional probability \( P(A|B) \) is defined as:
\[
P(A|B) = \frac{P(A \cap B)}{P(B)}
...