The evolution of the eohippus into the modern day horse is an example of metamorphosis.
A character change would be internal, stasis means to remain the same and extinction is the end of an organism, the eohippus is extinct, but the question is asking specifically about it's change. Therefore choice 4 is the correct answer.
        
                    
             
        
        
        
The correct answer is "Commas".
        
             
        
        
        
The answer to your question would be that the version of the sentence that has correctly placed commas is the following one: Noah, who draws comic books in his free time, wants to write a graphic novel.  That is, your answer would be option A.
The clause set off with the commas is a non-restrictive relative clause. This means that it provides information which is considered non-essential to the meaning of the sentence and therefore can be dropped without altering its meaning. That is why they are set off with commas, parentheses or dashes. 
 
        
                    
             
        
        
        
Answer:
1. it has been 10 years since i attended school
2. i know my best friend sam for as long as i remember 
3. i have never liked anyone since 4th grade