In most arguments, the writer is trying to convince you of the validity of her position, so she has a vested interest in presenting the point as clearly as possible. Of course, the point may be complex or subtle or both. Nevertheless, she wants to express it clearly and simply. To obscure this underlying simplicity, the writers of the GMAT cannot change the wording of the statement much because that would leave it vague and poorly written. Their only option, therefore, is to camouflage the answer-choices.
Creating a good but incorrect answer-choice is much harder than developing the correct answer. For this reason, usually only one attractive wrong answer-choice is presented. This is called the β2 out of 5β rule. That is, only two of the five answer-choices will have any real merit. Hence, even if you donβt fully understand an argument, you probably can still eliminate the three fluff choices, thereby greatly increasing your odds of answering the question correctly.