⟩ Suppose you need to generate a list of all customer last names with their credit limits from the CUSTOMERS table. Those customers who do not have a credit limit should appear last in the list. Which two queries would achieve the required result? (Choose two.) A. SELECT cust_last_name,cust_credit_limit FROM customers ORDER BY cust_credit_limit DESC; B. SELECT cust_last_name,cust_credit_limit FROM customers ORDER BY cust_credit_limit; C. SELECT cust_last_name,cust_credit_limit FROM customers ORDER BY cust_credit_limit NULLS LAST; D. SELECT cust_last_name,cust_credit_limit FROM customers ORDER BY cust_last_name,cust_credit_limit NULLS LAST;