In 1984, almost 2 percent of humans who were admitted to hos

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In 1984, almost 2 percent of humans who were admitted to hospital emergency rooms after suffering a scorpion bite in the southwestern United States died from the attack. Ten years later, this figure had jumped to 4 percent. Clearly, the venom of the scorpion has become much more toxic to humans.

Which of the following statements, if true, most seriously weakens the above conclusion?

A) The scorpion population in the southwestern United States has remained steady since 1984.

B) There have been few innovations in the treatment of scorpion bites since 1984.

C) Most people who suffer scorpion bites are inexperienced hikers who are unaware of the best methods to avoid coming in contact with a scorpion.

D) Since 1984, people have learned that scorpion bites can be treated in the home as long as they are detected early.

E) People who survive one scorpion bite have a better than average chance of surviving a second bite.

OA D

Source: Princeton Review
Source: — Critical Reasoning |

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by deloitte247 » Fri Aug 23, 2019 9:58 am

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We need to find what opposes the conclusion given in the argument.
Premise:
- 2 percent of people who suffered from scorpion bite died.
- it increased to 4 percent after 10 years.
Conclusion: The venom of the scorpion has become much more toxic.

OPTION A - INCORRECT
We are not concerned about the population of the scorpion since the year 1984

OPTION B - INCORRECT
If true, there is no indication in the argument to back this up.

OPTION C - INCORRECT
We are not interested in how hikers should avoid scorpions.

OPTION D - CORRECT
This opposes the conclusion that scorpions are now more venomous. It explains why there is an increase in the percentage of people who died from scorpion bite.

OPTION E - INCORRECT
This cannot explain how the percentage of people who died from the bite increased from 2% to 4% in 10 years.