I’m pretty sure it’s the first option, if not I am so sorry.
        
                    
             
        
        
        
Structurally, DNA and RNA are nearly identical. As mentioned earlier, however, there are three fundamental differences that account for the very different functions of the two molecules. RNA has a ribose sugar instead of a deoxyribose sugar like DNA. RNA nucleotides have a uracil base instead of thymine.
        
             
        
        
        
Answer:
hgxfgjhfhfkfjhhfgdhjfhgdghkjfjgjfghck.jhfxb
Explanation: