What is a one$-$way selection statement in the context of Python?

It is an if statement that tests no conditions, but provides a block for execution.

It is a single if statement without a corresponding else statement used to test a condition and run statements, then proceed to the next statement.

It is a switch statement block that is used to direct the flow of data based on a single condition.

It is a single if$-$else statement block that is used to test a condition and run statements, as well as provide a default path for execution.