Answer:
The correct answer is letter "D": technical standards.
Step-by-step explanation:
In Business, technical standards represent the technical features products must possess according to the design of the producer and complying with any legislation that sets boundaries in how that good should be offered to consumers.
While in some cases the differential advantage of a product could rely on its technical features, in most cases technological industries have the same technical standards and they continuously compete so their products set those minimum requirements.