Since a Single Data Flow May Only Show Part of the Collective

Multiple Choice

Since a single data flow may only show part of the collective data,

A) the data store may be linked to several external structures defining the different data flows.
B) many data flows may have to be examined to determine the contents of a data store.
C) data stores must contain multiple redundant elements within repeating groups indicated by braces {}.
D) an alias must be used.