The female part of the flower is known as the CARPEL or pistil so the as would be D.
        
                    
             
        
        
        
What's up? i learned this a pretty long time ago so bear with me 
all cells: dna, nucleus, ribosome, cytoplasm, cell membrane, (mitochondria??) 
1/2: cell wall, vesicles
i think i may be wrong on mitochondria, again i honestly forget this due to the school system kinda failing us
        
             
        
        
        
Common parts
nucleus
endoplasmic reticulum
mitochondria
ribosomes
golgi apparatus 
plasma membrane or cell membrane
vesicles
        
             
        
        
        
Because it is the evolution ary process that the caterpillars is designed to go through according to this species.
        
             
        
        
        
The chief energy currency in the cell is ATP
which means adenosine tri phosphate 
Hope it helped :)