Which role best describes the president’s duties as head of the executive branch of government? chief of state chief of party chief administrator commander in chief

The correct answer is "Chief of State".

As a Chief of State, the President is in charge of all of the government workers that form part of the Executive Branch. It is up to him to decide what is the best way to enforce the Law provided by the Legislative Branch. In order to take the most informed decisions, it is a common practice for President's to hire advisors who are specialists regarding certain matters in public policy.  

bibliography and citations to credit the sources hope this you if not my deepest of apologize ^w^

both are true, the congress does have the power to create banks, even if this power is not specifically described in the constitution, since there is nothing restricting it and there is power given to the congress to make "all laws which shall be necessary and proper". maryland was not allowed to tax a branch of the national bank operating there, and the supreme court decided that no state could. both of these topics were discussed in a decision of the mcculloch v. maryland case in 1819.