I--Because:
-Tree ⇒ Trees
-Tooth ⇒ Teeth
-Mouse ⇒ Mice
But  "ox" not  "oxes".ts C 
        
             
        
        
        
Its A or C but i think A is the best answer. I hated this book lol.
        
             
        
        
        
I claim that Martin Luther King Jr.’s American Dream speech achieved civil and economic rights and caused the end of racism in the United States. 
Hope this helps <3
        
                    
             
        
        
        
I am sleeping
you are sleeping
it is 7am 
I slept
you slept
it was 7am