They are hydrophobic and insoluble in water 
 
        
             
        
        
        
Proteins differ from one another primarily in their sequence of amino acids
        
                    
             
        
        
        
The answer is B, carbohydrates. 
Carbohydrates are the first choice of the energy source of your body, they can be broken down into simple and soluble compounds such as glucose. These can be used by cells for respiration to generate energy for activities such as growth, movement, repair etc. Besides using for respiration, they are also capable of forming cell structures such as cellulose. 
        
             
        
        
        
Answer:
The  Construction of beds and drains or ridges and furrows is that ridge is (lb) the back of any animal; especially the upper or projecting part of the back of a quadruped while furrow is a trench cut in the soil, as when plowed in order to plant a crop.
Hope this helps :))
it is probably incorrect but i tried