Answer:
The student may have had difficulty in relating all ideas and arguments in the final text.
Step-by-step explanation:
A four-source essay is a very diverse text, one showing a variety of ideas and arguments that can be established independently. However, a final paper must be a completely related and well structured text. In other words, we can say that the four-source essay is a "raw" work that will be cut to form the final final paper. This polishing includes relating the arguments, removing unnecessary information, establishing a cohesive and complete structure within the necessary standards.