Chapter 3, Problem 6MC

Which of the following commands creates a new table containing a virtual column?

1. a. CREATE TABLE newt able AS (SELECT order#, title, quantity, retail FROM orders);
2. b. CREATE TABLE newt able (price NUMBER (3), total NUMBER (8, 2));
3. c. CREATE TABLE newt able (calc1 NUMBER (4), calc2 NUMBER (4);
4. d. CREATE TABLE newt able (cola NUMBER (3), colb NUMBER (3),

   cole AS (cola+colb));