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26 Mar 2026, 05:06
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
88% (01:36) correct
12%
(02:19)
wrong
based on 86
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On the Caribbean island of Guadeloupe, a researcher examined 35 patients with Parkinson’s disease and compared their eating habits to those of 65 healthy adults. She found that all of the patients with Parkinson’s regularly ate the tropical fruits soursop, custard apple, and pomme cannelle, whereas only 10 of the healthy adults regularly ate these fruits. From this, she concluded that eating these fruits causes Parkinson’s.
Which one of the following, if true, most strengthens the researcher’s reasoning?
A. For many of the Parkinson’s patients, their symptoms disappeared when they stopped eating soursop, custard apple, and pomme cannelle.
B. Of the healthy adults who did not regularly eat soursop, custard apple, and pomme cannelle, most had eaten each of these fruits on at least one occasion.
C. In areas other than Guadeloupe, many people who have never eaten soursop, custard apple, and pomme cannelle have contracted Parkinson’s.
D. The 10 healthy adults who regularly ate soursop, custard apple, and pomme cannelle ate significantly greater quantities of these fruits, on average, than did the 35 Parkinson’s patients.
E. Soursop, custard apple, and pomme cannelle contain essential vitamins not contained in any other food that is commonly eaten by residents of Guadeloupe.
Which one of the following, if true, most strengthens the researcher’s reasoning?
A. For many of the Parkinson’s patients, their symptoms disappeared when they stopped eating soursop, custard apple, and pomme cannelle.
B. Of the healthy adults who did not regularly eat soursop, custard apple, and pomme cannelle, most had eaten each of these fruits on at least one occasion.
C. In areas other than Guadeloupe, many people who have never eaten soursop, custard apple, and pomme cannelle have contracted Parkinson’s.
D. The 10 healthy adults who regularly ate soursop, custard apple, and pomme cannelle ate significantly greater quantities of these fruits, on average, than did the 35 Parkinson’s patients.
E. Soursop, custard apple, and pomme cannelle contain essential vitamins not contained in any other food that is commonly eaten by residents of Guadeloupe.
26 Mar 2026, 06:35
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Hi rungtamehul, let me try to help and also clarify one thing: there are several official questions posted along the similar line of reasoning.
It is a classic example of an A causes B type, and to strengthen it, we have to provide something that tells us there are no other reasons to cause B or nothing leads to both A and B, or something that increases our belief in A causes B.
Let's evaluate the option based on this thinking
A keep it as it presents the data that not eating these fruits are helping those patients
B Those who dont eat regularly eaten atleast 1...what this can do to strengthen. Irrelevant
C This will weaken so eliminate
D Amount of eating not helping eliminate
E This is telling the benefit of these food again irrelevant
So A is most strengthening
Hope this helps
It is a classic example of an A causes B type, and to strengthen it, we have to provide something that tells us there are no other reasons to cause B or nothing leads to both A and B, or something that increases our belief in A causes B.
Let's evaluate the option based on this thinking
A keep it as it presents the data that not eating these fruits are helping those patients
B Those who dont eat regularly eaten atleast 1...what this can do to strengthen. Irrelevant
C This will weaken so eliminate
D Amount of eating not helping eliminate
E This is telling the benefit of these food again irrelevant
So A is most strengthening
Hope this helps
rungtamehul
29 Mar 2026, 21:15
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Any strengthener will protect the causality mentioned in argument.
Causality - Eating fruits causes Parkinson
Option A - This shows that when cause is not happening then effect is also not happening. This is protecting the causality. Hence it's a strengthener.
Option B - Statement's magnitude is low. It do not supports the argument. If true, it hurts the argument (With very low magnitude)
Option C - This shows that effect is happening when cause is not happening. This hurts the causality. Hence it weakens.
Option D - If 10 healthy people are eating fruit significantly greater than Parkinson's patient then they must get Parkinson according to causality. But they are healthy. It weakens the conclusion.
Option E - It does not relates eating fruit and Parkinson. Hence it is not relevant.
Only A acts as strengthener. Hence Correct answer is A.
Causality - Eating fruits causes Parkinson
Option A - This shows that when cause is not happening then effect is also not happening. This is protecting the causality. Hence it's a strengthener.
Option B - Statement's magnitude is low. It do not supports the argument. If true, it hurts the argument (With very low magnitude)
Option C - This shows that effect is happening when cause is not happening. This hurts the causality. Hence it weakens.
Option D - If 10 healthy people are eating fruit significantly greater than Parkinson's patient then they must get Parkinson according to causality. But they are healthy. It weakens the conclusion.
Option E - It does not relates eating fruit and Parkinson. Hence it is not relevant.
Only A acts as strengthener. Hence Correct answer is A.
