Final answer:
Corina's job title is most likely to be a technical editor, as her role involves revising IRS documents, which requires strong writing, audience awareness, and editing skills.
Step-by-step explanation:
Considering Corina's job responsibilities involve revising investigation reports and policy manuals for the Internal Revenue Service (IRS), it's likely that her job title would be D. technical editor. A technical editor is responsible for reviewing and refining technical documents to ensure clarity, accuracy, and adherence to standards. This role fits with the tasks of revising IRS policy manuals and investigation reports, making the information accessible and understandable for its intended audience.
Technical writers, including technical editors, need to possess key skills such as writing, audience awareness, communication and collaboration, and problem-solving. They must produce work that communicates complex information in clear and concise language while managing their time efficiently to meet tight deadlines. The role of a technical editor aligns with these necessary skills.