Pretty sure it’s F Cardiovascular & musculoskeletal
        
             
        
        
        
Its a suffix cuz of ology 
        
                    
             
        
        
        
I would say D: appetite; 
appetite is a strong desire or liking for something. At Holidays there is typically a large assortment of food that maybe you don't eat on a regular basis, therefore would have a big appetite for them.
        
                    
             
        
        
        
Answer:
D.Extroversion 
Explanation:
Extroverts are often unfairly stereotyped as overly talkative or attention-seeking. In reality, they simply gain energy from engaging in social interaction. People who are high in extroversion need social stimulation to feel energized.