The reason the “upsetting process” is included in coin production is that this is the step where edges are added and edges are made hard and smooth, as shown in option B.
The production of coins is something very important to the country. For this reason, coins must be produced in a strong and safe way, to allow them to remain in circulation for a long time.
During coin production, the “upsetting process” is important to ensure that the edges are strong and do not hurt citizens.
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