What additional information would contribute to the validity of the ideas presented in this article?

Responses
A research data about this new thermometer pillresearch data about this new thermometer pill
B more information about the effects of heatstrokemore information about the effects of heatstroke
C the names of doctors who prescribe thermometer pillsthe names of doctors who prescribe thermometer pills
D a survey of young athletes will to try thermometer pills

A: research data about this new thermometer pill

B: more information about the effects of heatstroke
D: a survey of young athletes willing to try thermometer pills