If the RBI is of the fixed card variety, the N is not indicative of North. It only indicates the direction the nose of the aircraft is pointing. You can actually dispense with the cardinal direction letters and just focus on the bearing numbers.
If the exact bearing is not needed (in this case, it is not), use the RBI to indicate clock direction from your aircraft’s heading just like you would a traffic alert. In other words, the NDB is at 12:00, 3:00, 10:00, or 11:00 o’clock from your heading. It gives you the general direction (left, right, straight ahead, or u-turn) in which to turn to head to the NDB. When you know your heading, you can then use the numbers to know exactly how many degrees in which to turn to head to your NDB.
To get your answer, ask yourself which aircraft represents the correct heading based on your DG. Eliminate all other answers. If more than one represents the correct heading, which one has the NDB in the correct clock position from the heading. Eliminate all other answers. The answer that is left is the correct one.