Critical thinking in design.When conceiving the design of a new model, car companies regularly solicit consumer information on human factors, such as whether a seat is comfortable or whether a set of controls is easy to use. However, designer interaction with consumers is superior to survey data; the data may tell the designer why a feature on last year$$s model was given a low rating, but data will not explain how that feature needs to be changed in order to receive a higher rating. This preceding reasoning conforms most closely to which one of the following designer propositions?

A$.$

A car will have unappealing features if consumers are not consulted during its design stage.

B$.$

Car companies traditionally conduct extensive post$-$market surveys.

C$.$

Consumer input affects external rather than internal design components of cars.

D$.$

Getting consumer input for design modifications contributes to successful design.

E$.$

Designers aim to create features that will appeal to specific market niches.