3:00m cu of the current in electrical engineering and electrical toques
        
             
        
        
        
Answer:
B
Explanation:
If the student needs one gram but so far only has 0.37 grams, then the amount they need is the difference between what they need and how much they already have. 1-0.37=0.63 grams.
...which isn't actually an option because none of them have decimal points but I would say it is B anyway because it is the equivalent ratio and maybe there was a typo.
Hope this helped!
 
        
                    
             
        
        
        
Im pretty positive its A , hope this helps!