Final answer:
Option (D), The most versatile and commonly used portable electric tool is the Portable Electric Drill. It is essential for various tasks, which makes it more frequently used than power sanders, steel rules, and jitterbugs.
Step-by-step explanation:
The question is about identifying a versatile piece of equipment that is frequently used as a portable electric tool. The most versatile and commonly used tool of the options provided is the Portable Electric Drill. Drills are essential in both professional and home environments due to their ability to create precise holes, drive screws, and even mix paint or concrete with the proper attachments. In comparison, power sanders, steel rules, and jitterbugs have more specific applications and are not used as widely across different tasks.
It's important to note that while socket wrenches are invaluable tools in various applications, particularly in assembly and mechanical work, they are not electric tools like a power drill. Therefore, for general use and versatility, a power drill is a good tool to have on hand, aligning with the context provided: "A power drill or socket wrenches are good tools to have in a situation like this."