Final answer:
Purchasing supplies from a vendor is categorized as an Outflow of Cash From Operating Activities (OO), which is part of the daily operational expenses of a business, not to be confused with investing or financing activities.
Step-by-step explanation:
The purpose of purchasing supplies from a vendor is represented by the option OO: Outflow of Cash From Operating Activities. When a business buys supplies, it is using its operating cash to pay for goods or services that are necessary for its day-to-day operations. This transaction does not fall under investing activities, which involve the outflow or inflow of monies for investments such as stocks, bonds, or real estate, nor is it associated with financing activities that relate to borrowing or lending capital.
The export and import of goods and services involve the flow of financial payments between countries, with exports bringing money into the country and imports resulting in money leaving the country. This exchange affects the current account balance and the overall economic situation of a nation.