Which one of the following measuring techniques would best enable you to determine the distribution pattern of a population of zebra?
 1) Track how many and which individuals use a central watering hole
 2) Use a drone to capture aerial photographs of their habitat range
 3) Employ a camera trap in the middle of their habitat
 4) Use the mark-recapture method
 5) Collect and analyze DNA from hair samples collected at 2 locations