Which three are major activities that come under the Demand Planner role?

According to the Oracle Demand Management Cloud User Guide, the Demand Planner role is responsible for performing what-if analysis (A), reviewing product mix (B), and approving demand plan (E). These are major activities that come under the Demand Planner role. Resolving exceptions © and generating forecast (D) are not major activities that come under the Demand Planner role, but rather tasks that are performed by other roles such as Demand Analyst or Demand Administrator.