Final answer:
In Chapter 9 of the text, George Orwell presents Boxer's death as a betrayal by the pigs in power.
Step-by-step explanation:
In Chapter 9 of the text, George Orwell presents Boxer's death as a betrayal by the pigs in power. They break their promise to take care of Boxer in his old age and instead send him to the knacker (a slaughterhouse). This betrayal goes against the principles and ideals that the animals fought for during the rebellion, highlighting the corruption and hypocrisy of the pigs' leadership.