My answer is Louisiana purchase.
The correct answer is Her background of scientific inquiry could assist her research process.
<em>Ida Tarbell background as a teacher, particularly as science teacher helped her as an investigative journalist because her background of scientific inquiry could assist her research process.
</em>
Ida Minerva Tarbell (1857-1854) was a renowned teacher, scientist, and journalist. Her background as a science teacher helped her as an investigative journalist, assisting her research process in works such as “The History of the Standard Oil Company” and her writings for “American Magazine”.
I think it's health care but I could be wrong
