Well, Assuming that this is the same multiple choice question that I have answered, I would say B. Chromosomal Disease.
        
             
        
        
        
Answer:D
Explanation:
Hibernation is an innate behavior. It is not learned after birth. Animals that hibernate are born with an internal sense, or instinct, that tells them. 
Hope This help :P
 
        
                    
             
        
        
        
Answer:
Periodization can mean..
Explanation:
the process of categorizing the past into sections or periods of time. This is usually done in order to categorize and make it easier to talk about a specific time period.