Which of the following statements represents a correctly structured transaction?

UPDATE track

set media$\_$type$\_$id $=1$

where album$\_$id $=3$;

DELETE FROM playlist

WHERE playlist$\_$id $=1$;

INSERT INTO genre $($genre$\_$id$,$ name$)$

VALUES $(30,$ 'Funk' $),(31,$'Classical'$),(32,$'Pop Rock'$)$;

COMMIT;

BEGIN

UPDATE track

set media$\_$type$\_$id $=1$

where album$\_$id $=3$

DELETE FROM playlist

WHERE playlist$\_$id $=1$

INSERT INTO genre $($genre$\_$id$,$ name$)$

VALUES $(30,$ 'Funk' $),(31,$'Classical'$),(32,$'Pop Rock'$)$

COMMIT

BEGIN;

UPDATE track

set media$\_$type$\_$id $=1$

where album$\_$id $=3$;

DELETE FROM playlist

WHERE playlist$\_$id $=1$;

INSERT INTO genre $($genre$\_$id$,$ name$)$

VALUES $(30,$ 'Funk' $),(31,$'Classical'$),(32,$'Pop Rock'$)$;

COMMIT;

BEGIN;

COMMIT;

UPDATE track

set media$\_$type$\_$id $=1$

where album$\_$id $=3$;

DELETE FROM playlist

WHERE playlist$\_$id $=1$;

INSERT INTO genre $($genre$\_$id$,$ name$)$

VALUES $(30,$ 'Funk' $),(31,$'Classical'$),(32,$'Pop Rock'$)$