Public health official: Some researchers suspect that magnetic fields from high-voltage power lines can cause health problems for people who live especially near the lines. However, this is extremely unlikely: Beyond a distance of a few feet, the strength of the magnetic fields from high-voltage power lines is less than the average strength of magnetic fields in homes that are not located near such lines.

Which of the following would it be most useful to establish in order to evaluate the public health official's argument?

(A) Whether magnetic fields in homes that are not located near high-voltage power lines can cause health problems for the residents of those homes

(B) What proportion of people who live near high-voltage power lines believe that those lines may cause health problems

(C) Whether high-voltage power lines are routed near residential dwellings in urban areas

(D) What specific diseases or conditions are suspected by some researchers to result from exposure to magnetic fields from high-voltage power lines

(E) What is the average strength of magnetic fields in workplaces that are not located near high-voltage power lines

This question, though Official, has some ambiguity in my opinion. other options make no sense but OA is not the best

1. Magnetic fields from high-voltage power lines can cause health problems to people living near it.

2. Beyond a distance of few feet, the strength of the magnetic fields is less than the average strength of magnetic fields in homes living away from those lines.


Which of the following would it be most useful to establish in order to evaluate the public health official's argument?

A. Whether magnetic fields in homes that are not located near high-voltage power lines can cause health problems for the residents of those homes

The 2nd sentence clearly mentions effects of power lines located away from residential homes - This can be a possible answer.

B. What proportion of people who live near high-voltage power lines believe that those lines may cause health problems

We have no data to comment on Proportion - Incorrect.

C. Whether high-voltage power lines are routed near residential dwellings in urban areas

The statement provided explicitly claims that " Magnetic fields from high-voltage power lines can cause health problems to people living near it. " so it is not desirable to place power lines near residential dwellings in urban areas.

The Official mentions that establishing power lines - Incorrect.

D. What specific diseases or conditions are suspected by some researchers to result from exposure to magnetic fields from high-voltage power lines

No information provided for specific diseases/conditions - Incorrect

E. What is the average strength of magnetic fields in workplaces that are not located near high-voltage power lines

Average strength of magnetic fields in workplaces can't be predicted , because we don't have such data. - Incorrect.


Hince , IMHO - A
_________________

Imo A
The argument tells us that fear of developing disease by living near high voltage lines is not correct as they are exposed to much less strength of magnetic field the people living is areas far off from such lines are exposed to .
So if we whether those people who live far off can develop disease because of magnetic field then we can determine whether people living near such high voltage lines are prone to diseases.
_________________

Public health official: Some researchers suspect that magnetic fields from high-voltage power lines can cause health problems for people who live especially near the lines. However, this is extremely unlikely: Beyond a distance of a few feet, the strength of the magnetic fields from high-voltage power lines is less than the average strength of magnetic fields in homes that are not located near such lines.

Which of the following would it be most useful to establish in order to evaluate the public health official's argument?

A. Whether magnetic fields in homes that are not located near high-voltage power lines can cause health problems for the residents of those homes
B. What proportion of people who live near high-voltage power lines believe that those lines may cause health problems
C. Whether high-voltage power lines are routed near residential dwellings in urban areas
D. What specific diseases or conditions are suspected by some researchers to result from exposure to magnetic fields from high-voltage power lines
E. What is the average strength of magnetic fields in workplaces that are not located near high-voltage power lines

Here conclusion is-- the strength of the magnetic fields from high-voltage power lines is less than the average strength of magnetic fields in homes that are not located near such lines.
Prethinking-
I have to evaluate the argument.
Check for options,,,if negated its going to disturb the conclusion.

Option A-Whether magnetic fields in homes that are not located near high-voltage power lines can cause health problems for the residents of those homes .

iF YES--then argument can sustain
If No-it disturbs statement that---magnetic field can cause health issues to the people.

B-proportion-out of scope
C-lines in urban area or rural area.......concerned about effect of magnetic lines that can cause health issues. Criteria is health issue here
D-criteria of health issues,,,not cardiac disease or thyroid issue
E-What is the average strength of magnetic fields in workplaces that are not located near high-voltage power lines

knowing average strength has nothing to do here. Knowing whether manetic field causes issue to public health or not--is the main concern


Try again and again till you succeed. Never compromise,..
priya