Fill in the blank so the statement will determine which items Yash Randall has purchased. Use the first initial of the table as an alias. Perform the search using the customer name, not the customer number. Just enter the part that's missing. 

SELECT DISTINCT title, customer_first_name, customer_last_name, OD.item_id

FROM customers C JOIN orders O ON C.customer_id = O.customer_id

JOIN order_details OD ON O.order_id = OD.order_id

[Fill in the missing piece]

WHERE customer_first_name = 'Yash' AND customer_last_name = 'Randall'

ORDER BY item_id;