cRIGHT OUTER JOIN d. INNERJOIN 5. 5. Which of the following is a request that can be answered using an OUTER JOI ? (Points a. Show me customers and employees who have the same name. O b. Find the bowlers who live in the same ZIP code c. What products have never been ordered? O d. show me the students and their teachers who have the sam first name. 6. Which keyword represents missing or unknown values in sQL? (Points : 1) O a. ZERO O b. EMPTY C. NOTHING o d. NULL