C is correct, the second chart is a dual axis with an unsynchronised axes.
D is incorrect, if you set discount to a dimension, it will create a point for every discount value.
B is incorrect, as it wouldn't even visualize the discount
A is incorrect as it would create a gradient on the initial axes ranging between the discount values.
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CollectiveConsciousness
Highly Voted 1 year, 3 months agoIzzieH
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