The determinants for the aggregate demand curve are income, interest rates and consumer confidence. what do these determinants have power to do?

A. shift the aggregate demand curve
B. move from one point to another on the same aggregate demand curve
C. bend the aggregate demand curve

Answermediator;

With reference to the solutions, following things may be noted1) homogeneous solutions comprises of single phase.2) heterogeneous solution comprises of more than one phase.3) in colloidal solution, solute is evenly distributed in solvent. in such system, it is difficult to separate solute and solvent.4) in suspension, there is an uneven distribution of solute in solvent. in such system, solute and solvent gets separated on standing long.    blood is a homogeneous and colloidal solution,salad dressing is a heterogeneous and suspension solution.   

The correct answer is a