Final answer:
The past tool that made it difficult for her to conduct her research could be the lack of reliable information or sources. It is important to have access to a variety of sources that provide a balanced perspective on the topic.
Step-by-step explanation:
The past tool that made it difficult for her to conduct her research could be related to the lack of reliable information or sources.
An example of this could be the challenge of finding primary sources or firsthand accounts that equally represent different ports in her research.
In order to successfully conduct research, it is important to have access to a variety of sources that provide a balanced perspective on the topic.