The answer is the third choice or choice C. Persuade means to CONVINCE someone to try to do something or try something. In this case the speech is PERSUADING the audience to become vegetarians. 
        
                    
             
        
        
        
The czar's government collapsed because of losses at the front and the fear of a German advance on Moscow.
        
             
        
        
        
Assuming that you're referring to 'the rules of the game',
The reason why waverly's drawn to the elaborate secrets of chess is because she did not get a good overnight , and represent the relationship between her and her mother
        
             
        
        
        
Answer: why Annie made the changes she did
Explanation:
The first sentence stated that "Finally, on June 25, 1894, she was off". The sentence along with the second sentence doesn't give information regarding the reason for Annie made the changes that she made.
The sentence three stated that "It had taken her three months to travel approximately 1,300 miles, and she had more than 20,000 miles left to cover".
Without the writer not including the statistic in sentence 3, it'll have been unclear why Annie made the changes she did.