I wouldn't use the word "discovered" it just seems a bit off. I'd rewrite the sentence with a simpler word yet easy to say and understand: "When we searched the school for damage, a new broken window was found." I hope this helps you. My apologies if this is incorrect.
        
             
        
        
        
The author of the text that contains this quote appeals to the reader's sense of logic by quoting an authority/expert on the matter. Taking into consideration that expert's opinions, in argument, are as close to a fact as you can get without actually using a fact, this shows us how your best answer here is option B.
        
                    
             
        
        
        
Answer:
mount Everest is the highest point
Explanation:
Its literally the tallest mountain...
 
        
             
        
        
        
here you go your answer dear friend