Final answer:
The reference materials do not contain information about what El Cid did with the survivors of Alcocer after the battle in Canto 1 of The Song of the Cid; therefore, an accurate answer regarding those specific events cannot be provided.
Step-by-step explanation:
The student asked about the aftermath of El Cid's victory over the Moorish city of Alcocer, specifically regarding the actions taken by El Cid with the survivors of the city post-battle. Unfortunately, the provided reference material does not directly answer the question about El Cid and the capture of Alcocer from Canto 1 of The Song of the Cid. The references given discuss various historical events such as the invasion of Tenochtitlan by Cortés, the actions of the Spanish during their conquests, the rise and fall of the Almoravids and Almohads, as well as different sieges and massacres, but not the specific details pertaining to the fate of the people of Alcocer after El Cid's victory over the city. It is important when answering questions to provide accurate information specific to the question asked, and in this situation, the appropriate information about El Cid and Alcocer is not available within the provided references.