(I kinda need help) 1. How do we now know that the people who worked on the pyramids were not all slaves? Group of answer choices

The discovery of tombs and the inscriptions of their title inside the tombs tells us that the workmen were not slaves.

The discovery of journals inside the tombs of the workmen tells us that they were not slaves.

The discovery of baking ovens tells us that the workmen were not slaves due to what they ate.

The discovery of tools tells us that the workmen were not slaves.