Its c. Hope it helps alot sorry if not right :>
        
                    
             
        
        
        
You would use the word it's in place of the words "it is" because it is a contraction.
If you were to say "It is hot outside today!", you would instead say "It's hot outside today!"
Mark as Brainliest, hope I have helped, and have a good day!!!
        
                    
             
        
        
        
The places on earths surface that earths imaginary spin passes through