Who is responsible for sending Boxer to the knacker?

The responsibility for sending Boxer to the knacker lies with Napoleon. Throughout the novel, Napoleon represents the corrupt leadership that ultimately prioritizes power and convenience over the well-being of the animals.

Boxer, the hardworking cart-horse, is a symbol of loyalty and dedication to the farm and its principles. However, when he becomes injured and unable to work, Napoleon sees him as no longer useful. Rather than ensuring Boxer's well-being in his old age, Napoleon betrays him by arranging for his sale to the knacker, a decision that starkly illustrates the betrayal of the original ideals of Animalism and the exploitation of the working class. This act highlights the theme of corruption and the harsh realities of totalitarian regimes.

The other choices do not bear the same responsibility. Snowball is focused on revolutionary ideas and not in a position of power to carry out such an act. Squealer acts as Napoleon's propagandist and is tasked with spreading misinformation but does not directly make the decision. Mr. Jones, the previous owner, has no influence after being overthrown, so he is not relevant in this context. Thus, it is Napoleon's cold pragmatism and betrayal that ultimately lead to Boxer's tragic fate.