What is the output of the following code? class C1 { public double PI=3.1; public void m1() { System.out.println("M1 of C1"); } } class C2 extends C1 { public double PI=3.14; public void m1() { System.out.println("M1 of C2"); } } public class C { public static void main(String[] args) { C1 obj = new C2(); obj.m1(); } } 

	M1 of C1
	M1 of C2
	None of the above