Final answer:
In a civil trial, the typical number of jury members is twelve according to the Seventh Amendment of the U.S. Constitution.
Step-by-step explanation:
Number of Members in a Civil Trial Jury
The size of a jury in a civil trial varies, but according to the Seventh Amendment of the U.S. Constitution, which guarantees the right to a jury trial in federal civil cases, a standard jury consists of twelve members. Although federal civil trials are rare, the model of twelve jurors is still a common standard followed in states' judicial systems. It's important to specifically point out that in cases involving small claims, a jury might not be part of the trial process at all, and the decision can be made by a judge in what is known as a bench trial.
Therefore, the correct answer to the student's question is: C. 12 members.