Answer:
Marketing knowledge.
Explanation:
Marketing traditionally refers to all activities that a company performs to promote the sale of products or services. Traditionally, marketing has been seen as the totality of all activities aimed at promoting the exchange of products or services together with the sales department.
Today, in most developed economies, consumer needs play a more important role than the presence of surplus supply. Marketing has thus become a pre-eminent discipline in which identifying needs has become central. Therefore, all professionals who want to maximize their sales should have knowledge of this discipline, in order to cover most of their clients' needs.
Aperture is the unit of measurement that defines the size of the opening in the lens that can be adjusted to control the amount of light reaching the film or digital sensor
camera lens is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.
shutter is a device that allows light to pass for a determined period, exposing photographic film or a light-sensitive electronic sensor to light in order to capture a permanent image of a scene.
The Wife of Bath can best be described as jovial. She is rather happy all the time, especially when she is telling her tale.