Fact 1: Mating is generally preceded by courtship.

Fact 2: Copulation starts early in the mating season and usually stops when nesting begins.

Given the two facts above, answer the question "Copulation is generally preceded by what?" with the following options: 
- pollination
 - sound
 - Vibrates
 - impregnation
 - Decibels
 - fertilization
 - courtship
 - pollen


 

       courtship  