What will be the output of the following Java code?

class area {
    public static void main(String args[]) 
    {    
         double r, pi, a;
         r = 9.8;
         pi = 3.14;
         a = pi * r * r;
         System.out.println(a);
    } 
}

A. 301.5656

B. 301

C. 301.56

D. 301.56560000

Answer: Option A