Given the Information Shown in the Figure Below, Which of the Following

Given the information shown in the figure below, which of the following statements is correct ?

A) Drug A has the most appropriate pharmacodynamic properties of the three drugs shown as it reaches maximal efficacy within the therapeutic window.
B) Drug A has the most appropriate pharmacodynamic properties of the three drugs shown as a range of its plasm concentrations are within the therapeutic window.
C) Drug C has the most appropriate pharmacodynamic properties of the three drugs shown as non-toxic effects are achieved within the therapeutic window.
D) All three drugs have appropriate pharmacodynamic properties as they all achieve maximal physiological effect and have concentrationa within the therapeutic window.