In a Calculation Procedure, what is required for the output of a Calculation Step to be used in an Aggregation Step?


In a Calculation Procedure, what is required for the output of a Calculation Step to be used in an Aggregation Step?
A . |t must be a calculation step
B . It must be a matrix lookup step
C . It must be included in the calculation output
D . It must be included in constants

Answer: A