Many insist that fat people can become thin if only they put their minds to it and follow a strict diet regimen.
Which of the following if true, would most seriously weaken the contention in the above statement ?
1. Studies of twins and of adopted children show that inheritance accounts for as much as 70% of weight variance.
2. Dieting when undertaken with regular exercise reduces body weight significantly.
3. People who try to confirm to strict diet abandon their efforts midway.
4. Researchers thus far have not been able to establish beyond doubt, the usefulness of diet in controlling obesity.
5. obesity is said to be a cause for heart ailments but evidence shows that lean people are as vulnerable to heart attacks as those who are fat.
I opted for B.
Cause : putting their minds and following their strict diet regimen.
effect : becoming thin.
I opted for B because its showing that another cause is responsible for such an effect.
But the OA is A. In A, the source of sample is too doubtable to weakening the particular causality.
Please clarify.
Which of the following if true, would most seriously weaken the contention in the above statement ?
1. Studies of twins and of adopted children show that inheritance accounts for as much as 70% of weight variance.
2. Dieting when undertaken with regular exercise reduces body weight significantly.
3. People who try to confirm to strict diet abandon their efforts midway.
4. Researchers thus far have not been able to establish beyond doubt, the usefulness of diet in controlling obesity.
5. obesity is said to be a cause for heart ailments but evidence shows that lean people are as vulnerable to heart attacks as those who are fat.
I opted for B.
Cause : putting their minds and following their strict diet regimen.
effect : becoming thin.
I opted for B because its showing that another cause is responsible for such an effect.
But the OA is A. In A, the source of sample is too doubtable to weakening the particular causality.
Please clarify.












