Define the term tuple.

A.
A record in a relational database

B.
An unordered set of values

C.
An ordered set of rules placed in an ACL

D.
A method of joining HIDS and NIDS together

E.
Values placed in a flat database such as Excel

Explanation:
In programming languages or in relational databases, tuples are used as records. These records represent a string of values or attributes passed from one program (database) to another.