Analyze the following code.

public class Test $\backslash \{$

public static void main$($String $\backslash (]\backslash )$ args$)\backslash \{$

Number $\backslash ($ x$=\backslash )$ new Integer$(3)$;

System.out.println$($x$.$intValue $0)$;

$1$

System.out.println$($x$.$compare To$($new Integer$(4)))$;

$\backslash \}$The program has a compile error because an Integer instance cannot be assigned to a Number variable.

The program has a compile error because intValue is an abstract method in Number.

The program has a compile error because $\backslash ($ x $\backslash )$ does not have the compareTo method.

The program compiles and runs fine.