System software maintains the relationship between hardware and application software. It controls the operations of computer hardware. Utility software, device driver, firmware and operating system are fundamental examples to system software. Utility software provide improved functionality of managing, maintaining and controlling computer resources. Some examples to utility software are antivirus and backup software. Application software is a program developed specifically for end users. Application software can be classified into two categories, general and special purpose software. Some examples to general-purpose software are word-processing programs, database programs, presentation programs, etc. Examples of special purpose application software with a limited number of goals are commercial software and entertainment software such as games. The correct answer is Choice A.