What is the output of the following program?

public class Gen { G g; Gen(G g) { this.g =g; } public static void main(String[] args) { Gen arr[] = new Gen[5]; //line 1 arr[0] = new Gen("Java"); //line 2 arr[1] = new Gen(1); //line 3 arr[2] = (Gen)new Gen(1); //line 4 arr[3] = (Gen)new Gen(1); //line 5 for(Gen o:arr) { System.out.println(o); } } }

a)Compile time Error at line 1

b)Compile time Error at line 3

c)Compile time Error at line 4

d)Compile time Error at line 5

e)Run Time Error