Which of the following explains how archaeologists were able to learn about the Olmec?

Archaeologists were able to learn about the Olmec through various methods, including:

1. Excavations: Archaeologists conducted extensive excavations at Olmec sites, such as San Lorenzo, La Venta, and Tres Zapotes. These excavations unearthed artifacts, structures, and sculptures, providing valuable information about Olmec civilization.

2. Artifact analysis: Archaeologists analyzed the artifacts discovered at Olmec sites. These included pottery figurines, stone sculptures, jade objects, obsidian tools, and pottery vessels. Through careful examination and comparison with other Mesoamerican cultures, researchers could understand the Olmec's craftsmanship, symbolism, religious beliefs, and trade connections.

3. Monumental architecture: The Olmec built impressive monumental structures, such as pyramids, platforms, and stone altars. Archaeologists studied these architectural features, measuring their dimensions, analyzing their construction techniques, and interpreting their function within Olmec society.

4. Hieroglyphic script: Although the Olmec did not create a fully developed writing system, they used a complex system of symbols and hieroglyphs. Archaeologists deciphered and interpreted these inscriptions found on various artifacts, including the famous "Captive" figure. While the full meanings of these writings are not yet fully understood, they provide insights into Olmec rituals and possibly political structures.

5. Environmental studies: Archaeologists researched the Olmec's relationship with their environment, studying the soils, plant remains, and pollen samples found at Olmec sites. By analyzing these samples, researchers were able to determine the Olmec's agricultural practices, use of natural resources, and their impact on the surrounding landscape.

6. Comparative ethnography: Researchers also compared the archaeological findings with modern-day indigenous cultures in Mesoamerica, such as the Maya and Zapotec. By observing and learning from these living descendants, archaeologists gained insight into Olmec customs, traditions, and social organization.

Overall, a combination of excavation, artifact analysis, architectural study, hieroglyphic script interpretation, environmental research, and comparative ethnography has allowed archaeologists to steadily unravel the mysteries of the Olmec civilization.