What implementation step is required to add a new hierarchy for a dimension member? (1)

What implementation step is required to add a new hierarchy for a dimension member? (1)
A . Insert the hierarchy name into the ‘APPROVALORG’ web application parameter.
B . Insert the hierarchy name to the TOPDOWN’ web application parameter,
C . Insert ‘PARENTH2’ column after ‘PARENTH1’ within the dimension member sheet.
D . Insert ‘PARENTH2’ into the dimension property list.

Answer: C