I think it's A. don't know for sure
Heritage day, as its name states, celebrates heritage (obviously). The reason that "closes gaps" from the past is because it celebrates culture that was suppressed in the past, and it promotes diversity and unity that was previously discouraged or prosecuted.
the unions industrial and economic capacity soared during the war as the north continued its rapid industrialozation to suppress the rebellion. the south alsp had few rail lines and less industrial base and agricultural economy based on slavery which made mobilizong resources difficult
