Atechnique used in testing modules, especially where modules are written and tested in a top-down fashion, where a few lines of code are used to substitute for subordinate modules describes: a) unit testing. b) module testing. c) component-level testing. d) stub testing. e) top-down testing.

Option (D)

Explanation:

Stub testing are referred to as the programs which tends to reproduce the similar conduct of a software element that the module which is undergoing the tests tends to rely on. Stub testing mostly provides the prerecorded answers to the statement made at the time of the test, thereby not answering to any variable outside the program.