Answer:
The correct answer is letter "A": format wars.
Step-by-step explanation:
Format wars refer to the competition between storage or electronic devices that have similar uses but are incompatible between them. Under this scenario, the competing companies openly confirm the idea that each of them is not willing to cooperate with the other in an attempt of taking control over the market.
An example of format wars is the use of High Definition (HD) DVDs and Blue-ray discs or Microsoft versus Apple in computer technology.