Sentence Correction (SC) | Although most large public relations firms can afford to run

Although most large public relations firms can afford to run information technology centers in-house, some niche firms are discovering that thecost associated with maintaining an information technology staff and from continuously improving hardware and software are larger than they initially estimated.

A) cost associated with
B) costs associated from
C) costs associated with
D) cost arising from
E) costs arising from

My Reasoning -

Costs associated with X and Y - (X and Y are somethings
...

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