Final answer:
McElroy is engaging in exporting, which is the process of selling goods or services to other countries.
Step-by-step explanation:
The correct answer is c) Exporting.
McElroy is engaging in exporting, which is the process of selling goods or services to other countries. In this case, McElroy purchases items at estate auctions and sells them on eBay to buyers in Australia, Israel, and other countries around the world.
Exporting allows businesses to expand their market reach and take advantage of global demand for their products or services.