Choose the One Alternative That Best Completes the Statement or Answers

Choose the one alternative that best completes the statement or answers the question.
-Figures such as these ___________.

A) allow scientists to determine the exact quantity of a toxicant that will harm humans
B) are used to report the effects of a toxicant on wildlife populations
C) are used by scientists in epidemiological assessment of a toxicantʹs effect
D) represent typical dose-response curves for endocrine disruptors
E) are used by scientists in risk assessment