Rocko's Is a Sandwich Shop Located Just Off an Exit

Multiple Choice

Rocko's is a sandwich shop located just off an exit of a heavily traveled interstate.The owner would like to purchase billboard advertising on the interstate just before the exit,wants to achieve a consistent and relatively permanent presence on this heavily traveled interstate,needs to stay within a moderate budget,and is willing to commit to a multi-year period for this advertising.Which type of billboard advertising should he purchase? 

A)  8-sheet poster 
B)  20-sheet poster 
C)  digital billboard 
D)  painted bulletin 
E)  permanent bulletin