Final answer:
The most pertinent skill for knowledgeable workers, relevant across fields such as engineering and history, is the ability to communicate information to others, which is essential for activities like making presentations and interacting with customers.
Step-by-step explanation:
Essential skills for knowledgeable workers span a variety of competencies beyond technical or physical abilities. While the options presented include lifting heavy objects (physical labor), designing a web page (technical/creative), and installing software programs (technical), the most relevant skill among these for workers to possess, across multiple disciplines including engineering and history, is the ability to communicate information to others.
Communication is critical for engineers who need to make presentations, write technical reports, and interact with customers or colleagues. Similarly, historians also rely heavily on communication to effectively articulate and interpret complex data, whether that involves storytelling or analyzing human behavior. In both realms, the ability to think critically and communicate effectively is highly valued and essential for success.
Therefore, the final answer to the student's question is D. Communicate information to others. This choice aligns with the multidisciplinary importance of good communication skills, critical thinking, and decision-making abilities that are beneficial in diverse career paths.