Final answer:
An integrity check is used to determine the correctness of the logical relationship between two data items. It ensures data consistency and accuracy within a database or across databases, and is enforced through rules and constraints.
Step-by-step explanation:
The option that determines the correctness of the logical relationship between two data items is c) Integrity check. An integrity check assesses the accuracy and consistency of data within a database or data between relational databases. It ensures that data remains intact as it is used and modified over time. This type of check is crucial in database management systems where referential integrity between tables, for instance, is paramount to maintaining data veracity.
The integrity of data is often enforced through a set of rules and constraints that define how data is allowed to be entered, stored, and connected.