When comparing two differently grained facts directly against one another, the developer must:

A.
eitherwrite a union query or two reports that roll both facts up to a common level

B.
eitherroll up the lower grained fact to the higher level or allocate the higher grained fact to the
lower level

C.
declare determinants at multiple levels in the dimensions of a DMR Framework Manager model

D.
ensure that all conformed dimensions shared by the facts have the same number of levels