Which SQL statement would produce the required result?

See the Exhibit and Examine the structure of the CUSTOMERS table: Using the
CUSTOMERS table, you need to generate a report that shows an increase in the credit limit
by 15% for all customers. Customers whose credit limit has not been entered should have
the message “Not Available” displayed. Which SQL statement would produce the required
result?

A.
SELECT NVL(cust_credit_limit,’Not Available’)*.15 “NEW CREDIT” FROM customers;

B.
SELECT NVL(cust_credit_limit*.15,’Not Available’) “NEW CREDIT” FROM customers;

C.
SELECT TO_CHAR(NVL(cust_credit_limit*.15,’Not Available’)) “NEW CREDIT” FROM

customers;

D.
SELECT NVL(TO_CHAR(cust_credit_limit*.15),’Not Available’) “NEW CREDIT” FROM
customers;