Can someone please help me
 
        
                    
             
        
        
        
   (Pp is the purple flower with the unknown genotype, pp is the white flower)
First scenario:
                                               Pp x pp 
       first generation:         Pp   Pp  pp  pp   (two purple, two white flowers)
Second scenario:              
                                               PP x pp
    second generation :     Pp  Pp  Pp  Pp  (four purple flowers)
        
             
        
        
        
C because they need Ribosomes to make protein and most cell needs protein to survive. Mitochondria because it produce energy for the cell.
~JZ
Hope it helps.