What built-in function converts a string into a number in Python?

In Python, the correct way to convert a string into a number can involve either the int() function or the float() function, depending on what kind of number you need. The int() function is used when you want to convert a string that represents an integer, while float() is for converting a string that represents a floating-point number.

For example, if you have a string like "123" and want to convert it to an integer, you would use int("123"), which results in the integer 123. If you have a string like "123.45" and want to convert it to a floating-point number, you would use float("123.45"), resulting in 123.45.

Since either method can be used to convert strings into numbers, the correct answer encompasses both functions, making it a comprehensive and accurate choice for this conversion task.