Third person omniscient would be my best guess. Hope this helps :D <span />
The overlap lies in the fact that both essays present an opinion on an idea with the goal showing deep understanding and personal thoughts regarding an entity, with the difference lying in argumentative essays also showing the second side to something, whereas persuasive essays only show one.
The type of context clue in the sentence is a definition.
D. by describing the different sports.
because he is explaining the different sports to let people know what they are like and the benefits of it.