Answer:
Bipolar disorder is a mental disorder that causes unusual shifts in mood, energy, activity levels, concentration, and the ability to carry out day-to-day tasks.
Explanation:
 
        
                    
             
        
        
        
I think it might be B-memory problems but I’m not sure so if I’m wrong then sorry lol.
        
             
        
        
        
Heart disease ways you can keep your heart healthy would be one. 
        
                    
             
        
        
        
Explanation:
B options is your answer bro 
 
        
                    
             
        
        
        
Magnetic resolution imaging (MRI)  and ultrasound.