What does 'println()' do in Kotlin?

The function 'println()' in Kotlin is specifically designed to output a line of text to the console. When 'println()' is called, it takes the string or object provided to it, converts it to a string format if necessary, and prints it followed by a newline character. This behavior is foundational for debugging and logging information during development, as it allows developers to see the output of their code directly in the console.

In contrast, the other options do not accurately reflect the functionality of 'println()'. It does not execute a command without output, nor does it return a value to a calling function or create a new function. Each of those statements detracts from the primary purpose of 'println()', which is to facilitate easy visual feedback by printing messages to the console during execution.