Actions speak louder than words means talking about something isn't going to make it better, you should take action so it helps solve the problem. I wouldn't say it talks about proving anything wrong based on the definition.
Answer:
The answer to this question is a).
In the year 1666, Samuel Pepys describes the Great London Fire as a terrible fire that had destroyed a large part of London.Pepys was more distressed when he is able to see the fire more closely. He observes how pervasive it is and how much devastation and adversity it has caused.