Which two code fragments correctly create and initialize a static array of int elements?

Which two code fragments correctly create and initialize a static array of int elements? (Choose
two.)

A.
static final int[] a = { 100,200 };

B.
static final int[] a;
static void init() { a = new int[3]; a[0]=100; a[1]=200; }

C.
static final int[] a = new int[2]{ 100,200 };

D.
static final int[] a;
static { a=new int[2]; a[0]=100; a[1]=200; }

Explanation: