Choice ''a'' is correct. A systems analyst would take on the role of learning a purchased package and would have the job of integrating it into any existing software. The systems analyst would also take responsibility for training staff in its use. A systems analyst is sometimes referred to as a systems integrator with purchased systems since that individual is responsible for adapting or integrating the purchased system into the business.Choice ''c'' is incorrect. A network administrator would manage the Local Area Networks (communications), but would not be responsible for leading the integration of purchased software into existing software and systems.Choice ''b'' is incorrect. A programmer would be involved in writing new programs or maintaining existing programs, not integrating a purchased system with existing software.Choice ''d'' is incorrect. An IT supervisor would manage part of the IT function but would not necessarily provide the "hands-on" integration effort contemplated by the employment advertisement.