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People whose bodies cannot produce the substance cytochr

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People whose bodies cannot produce the substance cytochr [#permalink] New post 07 Dec 2017, 09:32
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People whose bodies cannot produce the substance cytochrome P450 are three times as likely to develop Parkinson's disease, a disease that affects the brain, as are people whose bodies do produce this substance. Since cytochrome P450 protects the brain from toxic chemicals, toxic chemicals probably play a role in the development of Parkinson's disease.

Which of the following, if true, most strongly supports the argument?

(A) It will soon be possible for cytochrome P450 to be synthesized for the treatment of people whose bodies cannot produce this substance.
(B) Many people whose bodies are unable to produce cytochrome P450 lack the ability to produce certain other substances as well.
(C) Cytochrome P450 has no effect on the brain other than to protect it from toxic chemicals.
(D) People with Parkinson's disease often exhibit a marked lessening in the severity of their symptoms when they are treated with dopamine, a chemical produced naturally in the brain.
(E) Many people with Parkinson's disease have the ability to produce cytochrome P450 naturally.
[Reveal] Spoiler: OA

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Last edited by Carcass on 07 Aug 2018, 13:56, edited 1 time in total.
Edited the OA
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Re: People whose bodies cannot produce the substance cytochr [#permalink] New post 26 Dec 2017, 08:11
can you please expalin i m confused between options C and D
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Re: People whose bodies cannot produce the substance cytochr [#permalink] New post 26 Dec 2017, 11:25
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D is out of scope. We care about to reinforce the argument. If the substance protects the brain has only and solely that function. The argument is strengthened.

Hope this helps.

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Re: People whose bodies cannot produce the substance cytochr [#permalink] New post 07 Aug 2018, 04:51
Carcass wrote:
D is out of scope. We care about to reinforce the argument. If the substance protects the brain has only and solely that function. The argument is strengthened.

Hope this helps.

Regards



Is the answer C?
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Re: People whose bodies cannot produce the substance cytochr [#permalink] New post 07 Aug 2018, 13:57
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Added the OA. It was there before that we have had problems with the tags.

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Re: People whose bodies cannot produce the substance cytochr   [#permalink] 07 Aug 2018, 13:57
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