Which of the following arguments is used to call a function?
A Default B Keyword C Required D Variable number
The correct answer and explanation is:
The correct answer is B. Keyword.
In Python, a function can be called using different types of arguments. The use of keyword arguments allows for calling a function by explicitly naming the parameters that are being passed, rather than relying on the position of arguments. This makes the code more readable and flexible.
Keyword arguments are typically used when the function has multiple parameters and it becomes cumbersome to pass them in a strict order. By using the keyword arguments, the calling code specifies the names of the parameters along with their values.
Here, name and message are parameters of the greet function. When calling the function, the argument for name is passed using the keyword name="Alice", and the argument for message is also passed with the keyword message="Good Morning". This allows the caller to specify the values in any order as long as the keywords are correct, and it also makes it clear which argument corresponds to which parameter.
The key benefit of keyword arguments is that they allow the caller to pass arguments without worrying about their order in the function call. This is particularly useful when dealing with functions that have many optional parameters, some of which may have default values. By using keywords, the caller can choose to pass values for only some of the parameters while leaving others at their default values.
In summary, keyword arguments make calling functions easier and more readable, especially when working with functions that have multiple parameters.