The correct answer to this open question is the following.
Although there are no options attached we can say the following.
Hamilton was hesitant to accept the offer to be Washington’s, right-hand man because he knew there were many political differences and personal interests in the members of President Washington's cabinet, and he could get involved in many of them, knowing that he was so close to the President. It was a time when political factions were forming and politics was not an easy activity to perform.
Alexander Hamilton started his friendship with George Washington during the Revolutionary War when Washington was the General of the Continental Army. Later, during Washington's presidency, he was appointed as the Secretary of the Treasury, laying the ground of the economic system of the United States.