Answer:
its option A. bright tail feathers of peacocks during breeding season
Explanation:
 
        
             
        
        
        
The answer is The Doppler Effect.  It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842.
 
        
             
        
        
        
C. They provide instructions for protein synthesis and determine traits.
        
             
        
        
        
Most enzymes end with the suffix -ase.  Example: ligase, protase, maltase,   Of course there are few exceptions like pepsin.