You are presented with the question "How do male dogs mark their territory?" and the following answer choices: 
- Chemical energy
 - Hot dog eating contest
 - Adequate signage
 - with their fur
 - Scent marker
 - heat produced
 - mate with females
 - Paint

Now knowing that male dogs use pheromones in urine to mark their territory and during Urination Dog's urine is used as a scent marker for other dogs, choose the best answer.


 

     Scent marker    