B~ a climax is where everything takes place and many things could happen at one time. 
Ex, One guys slept with stacy's mom and but Stacy's daughter early had a secret crush on the guy and we didn't find out until that point. 
        
             
        
        
        
A beginner who will need detailed steps and directions
        
             
        
        
        
The answer would be A.
The question you have to ask is, is it possessive? 
Yes it is possessive. 
The wing is owned by the bird. Its wing was broken.
It's means it is or it has. 
It's would not make sense in this case because you can not put it is or it has into this sentence.
        
             
        
        
        
Sloppy is the answer, i think. correct me if im wrong:)