An argument based on logic and reason rather than emotion and personal opinion is best described as
a.
objective.
b.
rhetorical.
c.
biased.
d.
weak.

Objective.

Explanation:

An argument that is based on logic and reason would be best described as objective. The argument or anything which is objective, as the title itself suggests to aim towards a certain goal, in a specified period of time and thus, requires a series of actions to be followed at different times which requires logic and reason. The emotional and personal opinion may or may not be objective as sometimes these decisions are prejudiced and biased in approach. Logic and reason are used in objective studies to enhance the quality of argument or study and become more efficient in achieving the goal.

an argumentative essay presents objectively a topic and its main characteristics. besides, it states all this information and facts by giving authentic and substantiated proof to the audience. by contrast, a persuasive text purpose is to convince the audience about some facts by presenting them according to his/her emotions and feelings. the main purpose of a persuasive text is to convince the audience to agree with the author´s opinion. on the other hand, in the argumentative essay, the author leads the writer to recognize his/her point of view as the correct one.