You need to add a NOT NULL constraint to the COST column in the PART table. Which statement should you use to complete this task?

Group of answer choices

ALTER TABLE part

MODIFY $($cost part$\_$cost$\_$nn NOT NULL$)$;

ALTER TABLE part

MODIFY COLUMN $($cost part$\_$cost$\_$nn NOT NULL$)$;

ALTER TABLE part

ADD $($cost CONSTRAINT part$\_$cost$\_$nn NOT NULL$)$;

ALTER TABLE part

MODIFY $($cost CONSTRAINT part$\_$cost$\_$nn NOT NULL$)$;