Juan will be working on many documents relating to the case. He will create many files, draft many questions, and organize large amounts of information. To help organize all of this information, Juan will need to summarize and index his files. For which type of information is Juan also likely to create subfiles?

a$.$ The litigation file

b$.$ Return$-$of$-$service forms

c$.$ The pleadings

d$.$ Deposition transcripts