Which of the Following Statements About MRP Is TRUE

Which of the following statements about MRP is TRUE?

A) MRP gross requirements for a parent item are equal to the planned order releases of its components.
B) MRP gross requirements for a component depend on the planned order releases of its immediate parents.
C) To be classified as a successful MRP user, a company must use either the L4L or POQ rules for lot sizing.
D) MRP logic is based on the logic of uniform, continuous demand, and item independence.