The mass affordability of the iPhone is the result of the following, except

A) mass production and spreading of fixed costs.
B) the law of diminishing returns in manufacturing.
C) economies of scale and large volumes.
D) mass sales and distribution cost savings.

Mass Affordability

The widespread ability of the average consumer to purchase goods and services, often due to lower prices or increased income levels.

Economies of Scale

Enterprises see cost efficiencies due to their operating scale, with the cost for every unit of output generally declining as the scale enlarges.