Final answer:
Jennifer's new position as the CEO of a pen company is the Chief Executive Officer.
Step-by-step explanation:
Jennifer's new position as the CEO of a pen company is the Chief Executive Officer. The CEO is the highest-ranking executive in a company and is responsible for making major corporate decisions, managing the overall operations, and leading the organization towards its goals. As the CEO, Jennifer will oversee the strategic direction of the pen company and be in charge of making crucial decisions to ensure its success.