I want to say that it is C but I'm not sure
Answer: Olmec, Mayan, Toltec, Aztecs,
Explanation: Olmec is the first ancient civilization that started in 1600 B.C. Mayans began in 200 BC, Toltec began in 900 AD, and the Aztecs began in 1300 CE and were the strongest civilization. Spanish then came next in 1521 and conquered the Aztecs, claiming Mexico for Spain.
The correct answer to this open question is the following.
Although the previous link was not attached, we can say the following.
The central ideas or information of a primary or secondary source are the following,
A primary resource comes from the people who witnessed the event, the incident, or the specific moment. These people could have written their own descriptions, testimonies, books, or maybe journalists that directly reported what happened. It also could be an interview with people who were part of the historical event. For instance, if it is a soldier that participated in the Vietnam War, a journalist can interview him and use it as a primary source.
On the other hand, secondary sources can be obtained from other sources that were not direct. This could be an author that based its story in other investigations, or it could be encyclopedias.
Bribing elected officials
Go with option b it’s the right one