The correct answer is D. Animals not adapted to cold migrate to warmer regions, because suppose that the cold temperatures kill most of the plants, so if they can die why they select that place to live? The option B is not logical because this require long time to evolve this characteristic and the option C has more logic but it still not enough, because if the temperatures are colder more animals can die. I hope this help.
 
        
             
        
        
        
Helo i think the  answer to this question is trait
        
                    
             
        
        
        
1.its single celled
2.it grows in asia
3.they are long
i hope this helps! please mark as brainliest