What Is a Chemical's Median Lethal Dose

Multiple Choice

What is a chemical's median lethal dose?

A) This is the dose where an animal would be expected to show an acute response.
B) This corresponds to the highest point on a dose-response curve.
C) This is the level that a chemical becomes slightly toxic.
D) This is the dose that can kill 50% of the animals in a test population within a given time period.
E) This is the dose that will kill most of the medium sized animals in a test population.