To achieve the correct answer it is necessary to first find the argument's conclusion. In this example, there are no obvious words that are operating as either premises or conclusion indicators. What is required in this case is to consider the sentences logically and derive the proper conclusion; only then can one select an equivalent expression from the list of possible answers.
The first 3 sentences are descriptive and not functionally or logically required for the argument's conclusion.
The conclusion is in the sentence starting with 'but'. This follows from the claim that we can do what we wish with our personal property and that organs are personal property. Hence D is the correct answer.
A is disagreeing with the argument's conclusion.
B is a statement of one of the argument's premises.
C may be true given the descriptions in the first three sentences; but, this statement has nothing to do with the argument's actual conclusion, which is arguing against public opinion as revealed by the surveys.
E may be true but it is not related to the content of the conclusion.
