To whom does the concept of 'unlimited liability' apply?

The concept of 'unlimited liability' applies to business owners with personal financial risk because it means that in the event of business debts or losses, the owners are personally responsible for those obligations. This includes their personal assets, such as homes or savings, which can be used to settle business debts if the business is unable to pay them. This liability is common in sole proprietorships and partnerships, where owners do not have the protection of a separate legal entity provided by corporations.

The focus on business owners is crucial, as it distinguishes them from other entities like shareholders in limited companies, where liability is typically limited to their investment in the company. Thus, option C accurately describes who is affected by unlimited liability, underscoring the personal financial risk that comes with certain forms of business ownership.