The correct answer is: B. Personel
The correct spelling is: Personnel
Personnel is a noun that refers to the people who work for a company or organization. It can also refer to the department of a company that is responsible for hiring and managing employees.
The word "personel" is a misspelling of the word "personnel." It is often used in informal writing, but it is not considered to be correct English.
The words "proprietor" and "proposal" are both spelled correctly. A proprietor is the owner of a business or property. A proposal is a plan or suggestion for doing something.
