Series of fight between war lords for control
Cao cao had possession of an empire and tried to unify China, didn’t work out. After Cao Cao died he had to give up the position that when the Han dynasty died
Answer: Early adopter
Explanation: Individuals or groups who buy into a company's product before many others are called early adopters. Early adopters usually get a feel of the product or services before it becomes popular having already experienced the benefit and shortfalls of the product or services before many other individuals within the community.
Being among the first set of users or consumers, product manufacturers and impending consumers rely on early adapters to provide update about product shortfalls and general verdict on product performance.
The answer is D. Ethanol.
