I, me, we
Hope I helped!!
~ Zoe
        
                    
             
        
        
        
C.........................
 
        
             
        
        
        
I would say a book. But I’m not sure. Sorry this isn’t much help!
        
             
        
        
        
It is distant past
an·tiq·ui·ty<span>anˈtikwədē/</span>noun1.the ancient past, especially the period before the Middle Ages."the great civilizations of antiquity"<span>synonyms:<span>ancient times, the ancient past, classical times, the distant past"the civilizations of antiquity"</span></span>
        
                    
             
        
        
        
Answer:
The word "Pretty' as used in this context is an adjective.
Explanation:
Recall that an adjective is a word that modifies or describes a noun in a sentence. 
It is used to describe the attributes of a noun. An example of an adjective is 
<em>John saw a beautiful lady yesterday.</em>
Here, the adjective here is beautiful and it modifies the noun 'lady'
An adverb, however, shows the degree or extent of something by modifying a verb, adjective, determiner in a sentence.
An example is 
<em>The tortoise walked slowly</em>
Here, the adverb here is slowly as it shows how the tortoise walked.
Therefore, the word "pretty'' in the given sentence is an adjective as it describes the noun 'mare'.