What is the functionality of the following piece of code? public Object delete_key() { if(count == 0) { System.out.println("Q is empty"); System.exit(0); } else { Node cur = head.getNext(); Node dup = cur.getNext(); Object e = cur.getEle(); head.setNext(dup); count--; return e; } }

• A. Delete the second element in the list
• B. Return but not delete the second element in the list
• C. Delete the first element in the list
• D. Return but not delete the first element in the list