If you create an array with the following definition and method call: double[ ] scores = new double[10]; calcAverage(scores); What is the signature of the method calcAverage()?

		1. public static calcAverage(scores) { ///code goes here }
		2. public static void calcAverage(double[] numbers) { ///code goes here }
	3.	public static void calcAverage(double[20] numbers) { ///code goes here }
	4.	public static calcAverage(double[] scores) { ///code goes here }