The correct answer is A) Common law evolves in part based on decisions in court cases.
The statement about common law that is true is "Common law evolves in part based on decisions in court cases."
Common law had its origins in Europe, in Great Britain. It arrived at the North American territory with the English colonists that founded the first British colonies in the Americas. Common law is based on other legal precedents when judges made their decisions in other cases. Justices oftentimes use common law to make better decisions because there are not written causes in certain kinds of cases that are special.