Service and utility programs

The sentences below are descriptions concerning a language processor, a service program, and a control program. Which of the following is the appropriate combination of A, B, and C? A: It provides an efficient operating environment through the allocation of hardware resources, or such other function. B: It performs program translation or its related function. C: It provides programs that are generally deemed to be necessary, such as a data management utility and a disk management utility. A B C

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