The study of history does all of the following except:
d. promotes critical thinking and decision-making skills
It’s means two or more governments or levels of governments I think
The Gulf of Tonkin Resolution <span> authorized the president to take "all necessary measures to repel armed attack" in Vietnam.
This resolution had significant consequences for the Vietnam War and beyond that time. In regard to the Vietnam War, it provided the justification for the president, Lyndon Johnson, to escalate US involvement in the war and magnify the number of US troops there by hundreds of thousands. In US foreign policy in general, it represented an increase of the power of the Commander in Chief (the president) to deploy troops without getting formal approval in advance from Congress.
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in my judgement it is D.. sounds the most correct out of all :)