Which of the following observations is true concerning discovery?
a. it is the last stage of the civil litigation process.
b. it is one of the stages in a civil litigation but not in a criminal litigation.
c. it is often the most challenging part of civil litigation because discovery can be time-consuming and expensive.
d. it is a series of written questions that specifically identify information needed from the opposing party.

C) It is often the most challenging part of civil litigation because discovery can be time-consuming and expensive.

Explanation:

In a civil case the discovery phase takes place before the trial starts. Both parties try to gather as many facts as they can regarding the case and obtain evidence through the rule of civil procedure. They try to obtain evidence against the other party by the use of interrogatories, depositions, and requests for documents and admissions.

Discovery may be very time consuming and expensive since each party will investigate the other party and no party is going to voluntarily offer information, it must be discovered.

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hope i explained myself