Given a Union Transformation with 2 Input Groups, Which Statement

Multiple Choice

Given a Union transformation with 2 input groups, which statement is correct and true?

A) Both input groups must have matching ports. The precision, datatype, and scale must be identical across both input groups.
B) Either input group can have a port that does not match the other input group. The precision, datatype, and scale does not have to be identical across both input groups.
C) When merging the 2 groups of data together, the Union transformation will remove duplicate rows.
D) The port names in each input group can be named the same.