To create the proper style for an argumentative essay, a writer should a. add personal statements.

b. include vague language.

c. incorporate slang words.

d. provide clear statements.

d. provide clear statements

Explanation:

personal statements in an argumentative essay is a huge no! you want to use facts, not your own opinions

vague language won't get readers to understand what your essay is arguing, especially if you're really vague.

slang words is just too informal. serious argumentative essays for school should be using formal language.

The answer is c. hope that