Many times radio stations do not broadcast in all directions with the same intensity. To avoid interference with an existing station station may be licensed to broadcast only east and west. To create an east-west signal, two radio towers are sometimes used, as illustrated in the figure. Locations where the radio signal is received correspond to the interior of the curve defined by r = 29,000 cos 20, where the polar axis (or positive x-axis) points east. E Graph r = 29,000 cos 20 for 0 sos 360, where units are in miles. Choose the correct graph below. O A. O B. O C. OD. 2007 200 200- 200