Which Statement Best Defines the Term ED50

Multiple Choice

Which statement best defines the term ED50?

A) The dose at which 50% of a population of human test subjects will respond with an expected effect.
B) The dose at which 50% of a population of human test subjects would die from taking a drug.
C) The dose at which 50% of a population of animals would produce signs of toxicity.
D) The ratio between the lethal and the effective dose.