Firm ABC designs and implements a lower-cost method of producing its product.This is an example of:

A) product innovation.
B) the inverted U-theory.
C) economies of scale.
D) process innovation.

A national restaurant chain must pay damages for breach of contract to a cooking oil supplier. What type of law is involved?

A) Public law only
B) Private law only
C) Civil law only
D) Public, private, and civil law
E) Private law and civil law