Which of the Following Statements Accurately Relates to Economies of Scale

Which of the following statements accurately relates to economies of scale? Choose all that apply.

A) The introduction of a new supplier generally encourages economies of scale.
B) Economies of scale occur whenever a new product enters the market.
C) Economies of scale relating to distribution are particularly important in the drinks and food industries.
D) Economies of scale are particularly important in industries such as motor manufacturing.