When any state or country operates with a "command economy", this means that the government, instead of the "free market" or consumers, is in charge of determining output and production quotas.
The correct answer is D. Baron de Montesquieu.
Explanation
Charles Louis de Secondat, lord of la Brède and baron de Montesquieu (1689 - 1755) was a French philosopher who stood out for his ideas related to the intellectual and cultural movement of the Enlightenment. His works focused on the theory of separation of powers, which has been introduced in many constitutions around the world. His most famous work on the division of powers was his treatise "On the Spirit of the Laws" in which he states that in antiquity the functions of the State (necessary for the protection of the citizen) were monopolized in a single entity, which usually associates with despotism. Therefore, he proposes to distribute public powers among different entities, which limit each other, avoiding the monopolization of power in a single person or entity. So, the correct answer is D. Baron de Montesquieu.
The 2nd & 3rd options
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The noteworthy about the work of Daniel Burnham, Louis Sullivan, and Frederick Law Olmstead is they constructed high rises in urban areas on both coasts. They all took a shot at structures for the 1893 Chicago World's Fair, which presented numerous advancements.
