Dose response curves demonstrate the effect of a particular
     Dose response curves:  demonstrate the effect of a particular dose until the maximum effect is reached.  indicate the therapeutic index of a drug.  indicate if a physician should prescribe the drug.  indicate if a physician should prescribe the drug, demonstrate the effect of a particular dose, and indicate the therapeutic index. 
  
  Solution
Answer D:
The required dose as well as the frequency of intake is determined by the physician using this curve. The effect of the amount of drug or the dose can be obtained using this curve. Therapeutic index which is ratio of toxic concentration in minimum to median effective concentration can also be indicated using this curve.

