Which line of code, inserted inside the increment () method, will increment the value of c?

Given:
import java.util.concurrent.atomic.AtomicInteger;
public class AtomicCounter {
private AtomicInteger c = new AtomicInteger(0);
public void increment() {
// insert code here
}
}
Which line of code, inserted inside the increment () method, will increment the value of c?

A.
c.addAndGet();

B.
c++;

C.
c = c+1;

D.
c.getAndIncrement ();

Explanation:
getAndIncrement
public final int getAndIncrement()
Atomically increment by one the current value.
Reference:java.util.concurrent.atomic