What did Thomas Jefferson mean by “Never abandon a plan, principle, or friend” (please help)

Those things are most important in a persons life. Without them a person wouldn't survive in this world. Abandoning a plan is giving up, instead of abandoning it, make a few changes to it. Don't abandon a principle for it is a rule or moral compass that directs you into the person you are and the choices you make. At last a friend, someone to support you in the decisions you make and who can guide you or at least give advice to you, to make the right decision.

Explanation:

d is the best answer for this question.

in mcculloch v. maryland (1819) the supreme court ruled that congress had implied powers under the necessary and proper clause of article i, section 8 of the constitution to create the second bank of the united states and that the state of maryland lacked the power to tax the bank.

gibbons v. ogden, (1824), was a landmark decision in which the supreme court of the united states held that the power to regulate interstate commerce, granted to congress by the commerce clause of the united states constitution, encompassed the power to regulate navigation.