I believe the answer would be the mechanical solution.
Answer: A. help you understand the potential and the limitations of information technology
Explanation: Helping you understand some, if not all of the potential and limitations of information technology is among the usefulness of technical skills which are skills, abilities, knowledge or expertise that are needed to perform complex tasks, processes or actions that are computational, mechanical, scientific or relating to information technology. Examples include the knowledge of programming languages, mechanical tools, design programs etc.
Dr. Regan was hired to help retain employees by the Siri corporation without losing money and expectations. He was the one who suggested that employees could decorate their work spaces and this would help employees feel more comfortable where they have to work 8 or more hours per day. This then helped the company by people not calling in and less people quit their jobs. Dr. Regan was most likely an industrial and organizational psychologist. Many companies hires these types of psychologists to help their employees with stress at work and to put employees at ease.