A student is writing a research paper on the long-term physical effects of exercise. Which source should he consult for statistical data?

Question

Quizplus · Accepted Answer

An academic study covering the routines of athletes over a five-year period is likely to contain statistics and data regarding the long-term effects of exercise.
A lifestyle blog providing tips and tricks for maintaining an exercise routine is incorrect. A lifestyle blog would not likely contain statistical data or information regarding the long-term physical effects of exercise. Instead, it would be used to understand information for maintaining an exercise routine. 
A radio interview with a famous personal trainer is incorrect. A radio interview with a famous personal trainer would provide listeners with personal stories regarding training athletes. It would not provide statistical information regarding the long-term physical effects of exercise. 
A memoir written by an ex-football player is incorrect. A memoir written by an ex-football player is likely to contain personal stories and perhaps advice regarding exercise. It would not contain statistical data and is therefore incorrect.

A Student Is Writing a Research Paper on the Long-Term