Painted Bulletins Are Very Costly,but Some Advertisers Reduce This Expense

Painted bulletins are very costly,but some advertisers reduce this expense by:

A) moving them to different choice locations every two to three months.
B) repainting and modifying the display every 30 days.
C) using a mobile outdoor structure.
D) co-opting the costs with plant operators.
E) using three-dimensional displays that break through clutter.