Final answer:
The aim of creating page replacement algorithms is to decrease the page fault rate by efficiently managing memory in a system.
Step-by-step explanation:
The aim of creating page replacement algorithms is to decrease the page fault rate. When a program requires a page that is not loaded into memory, a page fault occurs requiring the operating system to decide which page to remove to make room for the needed page. Page replacement algorithms are crucial for optimizing the use of available memory and for keeping the system running efficiently by reducing the number of page faults. They do this through various strategies that predict which pages are least likely to be used soon. Therefore, the correct answer to the question is c) decrease the page fault rate.