each of the following statements is true with respect to the outer join except which one? a. it returns only the rows matching the join condition, but not the rows with unmatched values. b. the left and right designations reflect the order in which the tables are processed by the dbms c. the first table named in the from clause will be the left side, and the second table named will be the right side d. if three or more tables are being joined, the result of joining the first two tables becomes the left side, and the third table becomes the right side.