Fact 1: Male dogs use pheromones in urine to mark their territory.

Fact 2: Males produce 'pheromones' to attract females.

Given the two facts above, answer the question "What does the substance that male dogs have in urine to mark their territory do?" with the following options: 
- sweating
 - attract females
 - Release energy
 - repels females
 - attract enemies
 - attract males
 - adding heat
 - dangerous


 

  attract females       