Given: class Overloading { int x(double d) { System.out.println("one"); return 0; } String x(double d) { System.out.println("two"); return null; } double x(double d) { System.out.println("three"); ret

This option is incorrect because the presence of multiple methods with the same name and parameter signature prevents the code from compiling.

This option is incorrect as the code will not compile due to ambiguous method definitions, not execute any specific method.

This option is incorrect because the Java compiler will flag an error due to the invalid method overloading before runtime.

Compilation fails because the `Overloading` class defines three methods all named `x` with the exact same parameter list (`double d`). Java's method overloading rules state that methods must have distinct parameter signatures (number, type, or order of parameters); differing return types alone are not sufficient to distinguish overloaded methods, resulting in a 'method x(double) is already defined' error.