In my opinion the best sounding answer is C I hope this helpes<span />
        
                    
             
        
        
        
Answer:
Conductors
Explanation: the substances which have a large number of free electrons and offer a low resistance are called conductors
 
        
             
        
        
        
Answer:
            Nucleic acid don not contain amino acids.
Explanation:
             Nucleic acid is primarily composed of three main components, pentose sugar, phosphate group and nitrogenous bases. Amino acid is the building block of proteins. 
        
             
        
        
        
Photosynthesis: Chloroplast, Cellular Respiration: starts in chloroplast, but mostly in the mitochondria. Hope I helped!