What is the point at which there is no inclination for the price to rise or fall?

In a one-period inventory model, the higher the after-season sales price, the higher the order placed at the start of the season

Indicate whether the statement is true or false

In crow's foot style E-R diagrams, a single entity together with a related set of entities that each contain specific sets of attributes related to the single entity represent:

A) a strong entity relationship. B) an ID-dependent weak entity relationship. C) a non-ID-dependent weak entity relationship. D) a supertype / subtype relationship. E) a recursive entity relationship.