Which of the Following Code Fragments Would Not Raise an Error

Which of the following code fragments would not raise an error?

A) CREATE OR REPLACE FUNCTION ship_calc(p_qty IN NUMBER)
IS
Lv_ship_num NUMBER(5,2) ;
BEGIN
IF p_qty > 10 THEN
Lv_ship_num := 11.00;
ELSE
Lv_ship_num := 5.00;
END IF;
RETURN lv_ship_num;
END;
B) CREATE OR REPLACE ship_calc(p_qty)
RETURN NUMBER
IS
Lv_ship_num NUMBER(5,2) ;
BEGIN
IF p_qty > 10 THEN
Lv_ship_num := 11.00;
ELSE
Lv_ship_num := 5.00;
ENDIF;
RETURN lv_ship_num;
END;
C) CREATE OR REPLACE FUNCTION ship_calc(p_qty IN NUMBER)
RETURN NUMBER
IS
Lv_ship_num NUMBER(5,2) ;
BEGIN
IF p_qty > 10 THEN
Lv_ship_num := 11.00;
ELSE
Lv_ship_num := 5.00;
END IF;
RETURN lv_ship_num;
END;
D) CREATE OR REPLACE FUNCTION ship_calc(p_qty IN NUMBER)
RETURN NUMBER
BEGIN
IF p_qty > 10 THEN
Lv_ship_num := 11.00;
ELSE
Lv_ship_num := 5.00;
END IF;
RETURN lv_ship_num;
END;