The correct answer is letter D. It shows and demonstrates the correct separation of the elements in a series and correct use of commas.
<span>D. In our immediate family, there are birthdays on October 13, 1935, October 13, 1972, and October 13, 1990.</span>
Explanation:
Professionalism is the conduct, behavior and attitude of someone in a work or business environment. Professionalism leads to workplace success, a strong professional reputation and a high level of work ethic and excellence. Without proper professionalism, how can the people who need someone like that get help?
