What is written in the preamble to the constitution?
a. a guide explaining how to interpret and navigate the constitution
b. the consequences of and penalties for ignoring the constitution
c. an explanation that the constitution's purpose is to prevent abuse in government
d. a list of new laws added to the constitution accompanied by detailed explanations

c. An explanation that the Constitution's purpose is to prevent abuse in government

Explanation:

The Preamble to the Constitution of the United States is a brief introductory statement of fundamental declarative and introductory principles of the US Constitution. It establishes some general terms and objectives that the courts use as a faithful reference to the intentions of the so-called Founding Fathers regarding the meaning of the Constitution and what they expected it to achieve.

d) a constitutional amendment

an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.