I believe the correct answer would be actin filaments. These are polmers that are linear with G-actin as subunits that attaches ith myosin heads during the skeletal muscle contraction. They are necessary for cell shape, adhesion and contraction.
        
             
        
        
        
Answer: A. fruits,vegetables, and grains provide the most fiber.
        
                    
             
        
        
        
What? I don’t understand could you rephrase it
        
                    
             
        
        
        
Wow this teacher is a pain but I’d suggest just look up the steps of the digestive system or look at a diagram. But as for the bread chicken and mayo, you can say something along the lines of how the protein (chicken) uses amino acids to repair the micro tears in muscle. The bread (carbs) is stored for SHORT-TERM energy and how the mayo (fat) is passed through the blood stream and is either used for energy loss or stored for future use.
        
                    
             
        
        
        
Answer is B. Hope this helps!