QWhat is the output of the following program code?

abstract class C1{
	public C1(){ 
		System.out.print(1); 
	} 
} 
class C2 extends C1{ 
	public C2(){ 
		System.out.print(2); 
	} 
} 
class C3 extends C2{ 
	public C3(){ 
		System.out.println(3); 
	} 
} 
public class Test{ 
	public static void main(String[] a){ 
		new C3(); 
	} 
}

Choose the Best Option

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• A 12 ✔ ✖
• B 23 ✔ ✖
• C 123 ✔ ✖
• D 321 ✔ ✖

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