Answer:   Light and Temperature
Explanation:
With more light, the photosynthesis occurs faster. In most cases the grower will try to have the photosynthesis occur as fast as possible. With a lot of light available, the temperature may go up. On darker days, a lower temperature is desired. Only with really high amounts and really low amounts, light can be influenced; respectively screening and supplemental lighting.
 
        
             
        
        
        
Mutation can cause DNA to change
        
             
        
        
        
It’s corresponding molecule that or bonds to. I think it is a substrate.
        
             
        
        
        
Okay I'm not that smart. But I'm pretty sure it's B since people get salmonella food poisoning by... eating