Final answer:
A stub is a simple version of a function used for testing the main program when certain modules or services are not yet available. It allows other parts of the application to be tested in parallel with development.
Step-by-step explanation:
The correct answer is option A) a stub. In the context of software development, a stub is a simplified version of a function which is used during the testing phase.
This is particularly useful when the main program or application is being tested, and certain modules or external services are not yet available or implemented.
A stub may simulate the behavior of the original function but typically does not perform the full range of operations that the real module will ultimately perform.
It allows the main program to be tested without the complexity or unavailability of the final module, ensuring that other parts of the application can be tested and developed in parallel.
Stubs are part of a testing approach known as unit testing, wherein individual units of source code are tested to determine whether they are fit for use.
The correct answer is option A) a stub. A stub is a simplified version of a function or module used to test the main program during software development. It allows the main program to be tested independently of the original function or module, making it easier to identify and fix any issues or bugs.