The correct answer is B. Whether her research is complete
Explanation:
The purpose of creating an outline is to organize the content that will be included in a text by including major points, sub-points or details hierarchically. Moreover, it is expected each major point includes at least three sub-points or details because it is through these the major point can be explained.
According to this, Mallory's outline is inappropriate because she is missing more details to support one of the major points, which means she does not have enough information. Due to this, she needs to consider "whether her research is complete" and in this way, look for more information to support the major point she wants to include. This is the best option because she cannot delete the major point due to its importance or change the type of text she wants to write.
