In the context of legal proceedings and trial practice, discovery refers to:

A.
The process in which the prosecution presents information it has
uncovered to the defense, including potential witnesses, reports
resulting from the investigation, evidence, and so on

B.
The process undertaken by the investigators to acquire evidence needed for prosecution of a
case

C.
The process of obtaining information on potential and existing
employees using background checks

D.
A step in the computer forensic process

Explanation:
The key words are legal proceedings and trial practice. Information
and property obtained in the investigation by law enforcement
officials must be turned over to the defense. For some information
that is proprietary to an organization, restrictions can be placed on
who has access to the data. The other answers are forms of the
investigative process. During an investigation, answers “The process undertaken by the
investigators to acquire evidence needed for prosecution of a case” and “A step in the computer
forensic process” are appropriate definitions of discovery.