The correct answer is:
a. protects the rights of the people, prevents individual parts from being too powerful, can change over time to meet the needs of the country.
This option accurately reflects key principles of the Constitution, such as protecting individual rights (like those outlined in the Bill of Rights), establishing a system of checks and balances to prevent any one branch of government from becoming too powerful, and allowing for amendments to adapt to changing circumstances.
Option b includes inaccuracies, such as the idea that the President has all the power, which contradicts the balance of power established in the Constitution, and the claim that it can be changed by individual citizens, which is not how amendments are officially made.