Ok, it can't be C because you never place a comma in front of the adjective which is describing the noun, unless their is 3+ descriptive words. 
Commas never are used when there is an <u><em>'and' </em></u>set in front of it. Commas generally mean <u><em>'and'</em></u><em /><em />. So therefore don't need to be used again, so we can eliminate B. 
Not D, because it Does not contain a comma. 
A is the only correct option. 
Hope I helped. :) Thanks for using Brainly! :D 
 
        
             
        
        
        
Answer:Genetics
Explanation:
During reproduction the parents genes in the sex cells (egg and sperm) creat a new organism 
 
        
             
        
        
        
Yes, because his mother taught him to look at the world not only from his own perspective, but also from other one. This will lead him to not judge a book by its cover and keep an open mind to others’ situations in the future.
        
             
        
        
        
Answer:
The answer is C. ok my love.
Explanation:
 
        
             
        
        
        
- the author is limited to what he or she can make the characters do, in a way this affects the characters as well
- in different settings the characters may live different lives due to the environment they live in
- If it is a made up location then the author can do whatever he or she pleases, but if it is a real life location then they have to base the surroundings off of that area
Here are some I could think of hope this helps:)