Answer:
He was secretly sold and slaughtered for the profit of the leaders.
Step-by-step explanation:
Boxer falls down while a load of stones. He is told by Squealer that the best way to help Boxer is to send him to the hospital. The animals are skeptical but eventually consent. When the van comes to take Boxer away, however, Benjamin comes very excited to the field where the animals are working and demands them to come immediately. When they arrive, he reads the words on the van, "Alfred Simmonds, Horse Slaughterer." However, Squealer lies that Boxer went to the hospital and died happy.
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