Elotrik, a company that manufactures and supplies epilators, implements a marketing strategy to popularize its epilators and replace razors in the market. To counter this and stay in the market, the razor manufacturers introduce new offers and discounts. In the context of innovation streams, which of the following concepts does this scenario best illustrate?
A) Design competition.
B) Technological lockout.
C) Technological substitution.
D) Design iteration.