Julio decides his business will begin staying open until 7 p. m. instead of 6 p. m. The next day, the shop stays open until 7 p. m. This environment of flexibility to quickly change is characteristic of what form of business organization?

Sole proprietorship.

Explanation:

A sole proprietorship, otherwise called the sole trader, is a kind of enterprise that is possessed and run by one individual and in which there is no lawful differentiation between the proprietor and the business entity.