Answer:
I think the answer is the first option, more reliable and harder to use.
Explanation:
I think this because technology is expensive and the most reliable thing we have right now so the other options don't make sense.
 
        
                    
             
        
        
        
6CO2 + 6H2O --> C6H12O6 + 6O2
carbon dioxide + water --> glucose + oxygen
The arrow indicates sunlight (energy).
:)
        
             
        
        
        
ATP is the energy currency in life. It’s the high energy molecule that stores the energy we need. Organisms get ATP by consuming food.