What financial mechanism became a permanent and important feature of A

What financial mechanism became a permanent and important feature of American economic life after 1815?

A) the limited liability corporation with many stockholders and secured charters that could not be altered or withdrawn by government
B) corporations with state and federal government charters
C) the use of gold and silver in most commercial transactions
D) large commercial and industrial ventures financed and owned solely by one individual or family

ANSWER
Answer: A