Fact 1: Monotremes are mammals that reproduce by laying eggs.

Fact 2: When the egg is ready to hatch, it hatches.

Given the two facts above, answer the question "the young of monotremes are " with the following options: 
- hatched
 - babies
 - fertile
 - warm
 - white
 - older than their parents
 - born without a backbone
 - always stillborn


 

 hatched        