Hello,
The answer is option D domain.
Reason:
The answer is option D because Domains are used to find the outputs for a function. Its not input because inputs are usually used to help find the function. Its also not C because range is used to find the median, mean etc... of a group of numbers (which is not a function).
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit
