The correct answer to this question is E (drugs A and C).
Dose-response data are typically graphed with the dose or dose function on the x-axis and the measured effect on the y-axis. Because a drug effect is a function of dose and time, such a graph depicts the dose-response relationship independent of time. Measured effects are frequently recorded as maxima at time of peak effect or under steady-state conditions. Drug effects may be quantified at the level of molecule, cell, tissue, organ, organ system, or organism. Graphing dose-response curves of drugs studied under identical conditions can help compare the pharmacologic profiles of the drugs.