How can you execute a specific test case using unittest from the command line?

The appropriate way to execute a specific test case using Python's unittest framework from the command line is by specifying the module and the test case name in a format that unittest understands. The correct option indicates that you should use the command python3 -m unittest followed by the full path to the test method you want to run.

This command structure tells Python to run the unittest module as a script, allowing you to execute specific test functions directly. The use of -m unittest ensures that all the necessary unittest features are properly initialized, which is particularly important for using command-line options and discovering tests.

When specifying test_maths.Block.test_function_name, it indicates the precise test method within Block in the test_maths module to be executed. This granular control helps in situations where you want to debug or test a particular test case without running the entire suite.

The other options either have incorrect syntax or do not utilize the -m unittest format properly, thus they would not work for executing a specific test case as intended.