After Watching "So You Think You Can Dance" and Before

After watching "So You Think You Can Dance" and before "House" came on,Justin saw a 30 second commercial for a Taco Bell value meal,a 30 second commercial for Volkswagen,one 60 second for the latest adventure movie,and several 15 second spots,one of which promoted "Gilmore Girls," another CW a network show.The term used to describe the various national commercials that Justin saw is:

A) narrowcasting.
B) spot announcements.
C) syndicated spots.
D) integrated advertising.
E) cume spots.