單項選擇題

public class X {  
public static void main (Stringargs) {  
String s1 = new String (“true”);  
Boolean b1 = new Boolean (true);  
if (s2.equals(b1)) {  
System.out.printIn(“Equal”);  
}  
}  
}  
What is the result? () 

A. The program runs and prints nothing.
B. The program runs and prints “Equal”
C. An error at line 5 causes compilation to fail.
D. The program runs but aborts with an exception.

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