What is the output of the following code?

Java	C#
class Main { public static int dostuff(int y) { return y+=5; } public static void main(String[] args) { int x=5; for(int i=0;i<2;i++) { x=dostuff(x); } System.out.println("x:"+x); } }	class MainClass { public static int dostuff(int y) { return y+=5; } public static void Main (string[] args) { int x=5; for(int i=0;i<2;i++) { x=dostuff(x); } Console.WriteLine("x:"+x); } }

Question 3 options:

	x:15
	x:20
	x:5
	x:10