The correct answer is option number 1: Researchers triangulate their data.
In Quantitative Studies, trustworthiness refers to the validity and reliability of the data used or analyzed. Since quantitative researchers don't have at their disposal valid instruments with pre-established metrics related to validity and reliability, they often need to triangulate their data in order to firmly establish that the data is credible, transferable, confirmable, and dependable.
Olmecs are considered to be a mother culture because they are the ancestors of numerous other groups and civilizations that arose later in the Americas. They lived as early as 1500 B.C.
