Answer:
First copy cost is the correct answer for the given question.
Step-by-step explanation:
Because the cost of the first copy is less and they are a high-quality product and is also a similar copy of the original copy with features.
Duplicate copies have less in cost but their qualities are not better than that first copies because they are the coy of the original ones but the margin is higher in the duplicate copies.
In simple words, first copies have look similar to the original ones but their quality is cheaper and their production cost and selling costs are also cheap as compared to the original ones.