<prompt> Dose response curve of diazepam was produced alone and in the presence of flumazenil. Which of the following is true regarding the effect of flumazenil on the graph given belowDecrease in Potency and no effect on efficacyDecrease in Potency and decrease in efficacyNo effect on Potency and no effect on efficacyNo effect on Potency and decrease in efficacy  <response>: Competitive antagonist decrease potency with no change in efficacy. The effect of antagonist flumazenil can be overcome by increasing the concentration of agonistdiazepam 