Final answer:
The individual is using transferable skills to apply problem-solving proficiencies from past roles to their current security career, illustrating adaptability and versatility in their professional development. The correct option is d.
Step-by-step explanation:
The scenario described where an individual applies problem-solving proficiencies from past roles to their current security career is an example of using transferable skills. This concept is central to professional development and job flexibility, as such skills can be adapted to a wide range of situations beyond the context in which they were originally learned.
In the workplace, transferable skills include abilities like critical thinking, communication, teamwork, and analytical problem-solving, all of which are invaluable in numerous job roles. Continuing to refine your transferable skills can significantly enhance long-term career prospects and adaptability across various industries and positions.
Hence, Choice d is correct.