APPROPRIATE LEGAL STRUCTURE
A sole trader is a person who owns a business alone this could be a local shop keeper or corner shop like paul's superstore.
Public Limited Company
A Public limited Company (PLC) for short. its owned by the public you can buy shares for money and you own part of the company.
A Partnership business is a business owned by 2 to 20 people working in the same place. they work different hours and days but you also share all of the money you make from the business as the workers pay.