Until recently it was believed that weight training did not help children but in fact did harm and possibly stunted their growth. A new study has determined that weight training among children between ages 6 and 18 helped them grow stronger even though they did not gain muscle mass like adults. Therefore, our government should require weight training for all children in public schools who are between the ages of 6 and 18.
Which one of the following statements, if true, most seriously weakens the argument?
(A) The school year is only nine months of the year, and with children, weight training must be done on a consistent basis all year round. A home-based program is required for success.
(B) Since the children do not gain muscle mass, measuring their progress will be difficult without the specialized instruments used in the study.
(C) The study was performed with subjects from only one geographic location where weight training is more culturally acceptable.
(D) The gain in strength over a nine-month school year will be minimal. It takes at least a year for the children to show significant results from
weight training.
(E) Children do not respond positively to government requirements and low morale may adversely affect results of any government-instituted weight training requirements.