To solve this question, the user needs to know the basics of boolean expressions and how they work in Java programming. They also need to understand the concept of conditional statements.

Let's go through each option and explain why it is right or wrong:

The code starts by initializing the variable x to 5, and the boolean variables b1 and b2 to true and false, respectively.

The first conditional statement checks if the value of x is equal to 4 and if b2 is false. Since neither condition is true, the code skips the first print statement and moves on to the second one.

The second print statement prints "2" to the console.

The second conditional statement assigns the value true to b2 and then checks if b1 is also true. Since both conditions are true, the code executes the third print statement, printing "3" to the console.

Therefore, the output of the program is:

2 3

So, the correct answer is:

The Answer is: B