Question: What are the 3 characterized styles of architecture used in mild subtropical climate of the American Southeast?

Context paragraphs:
Antebellum architecture: Antebellum architecture (meaning "prewar", from the Latin "ante", "before", and "bellum", "war") is the neoclassical architectural style characteristic of the 19th-century Southern United States, especially the Deep South, from after the birth of the United States with the American Revolution, to the start of the American Civil War.  Antebellum architecture is especially characterized by Georgian, Neo-classical, and Greek Revival style plantation homes and mansions.

Environment of Florida: The environment of Florida in the United States yields an array of land and marine life in a mild subtropical climate.  This environment has drawn millions of people to settle in the once rural state over the last hundred years.  Florida's population increases by about 1,000 residents each day.  Land development and water use have transformed the state, primarily through drainage and infill of the wetlands that once covered most of the peninsula.

Climate of Georgia (U.S. state): The climate of Georgia is typical of a humid subtropical climate with most of the state having mild winters and hot summers.  The Atlantic Ocean on the east coast of Georgia and the hill country in the north impact the state's climate.  Also, the Chattahoochee River divides Georgia into separate climatic regions with the mountain region to the northwest being colder than the rest of the state, the average temperatures for that region in January and July being 39 F and 78 F respectively.  Winter in Georgia is characterized by mild temperatures and little snowfall around the state, with colder, snowier, and icier weather more likely across northern and central Georgia.  Summer daytime temperatures in Georgia often exceed 90 °F .  The state experiences widespread precipitation.  Tornadoes and tropical cyclones are common.

Plantations in the American South: Plantations were an important aspect of the history of the American South, particularly the antebellum (pre-American Civil War) era.  The mild subtropical climate, plentiful rainfall, and fertile soils of the American Southeast allowed large plantations to flourish; where large numbers of workers, usually Africans held captive for slave labor, were required for agricultural production.

Climate of Bilbao: Bilbao and its metropolitan area has an oceanic climate according to the Köppen climate classification (" Cfb") with mild winters and warm summers.  According to the Troll-Paffen climate classification, Bilbao has a temperate climate and according to the Siegmund/Frankenberg climate classification, Bilbao has a subtropical climate.  According to the European Environment Agency, Bilbao lies within the Atlantic biogeographical region.  The climate of Bilbao and the rest of the north-western part of Spain (the so-called Green Spain) is different from the rest of the country, characterized by a higher amount of rainfall and precipitation days, fewer sunshine hours and mild temperatures, in summer comparable to northern half of Europe with temperate climate.

Climate of Valencia: Valencia and its metropolitan area have a hot-summer Mediterranean climate (Köppen climate classification: "Csa") with very mild winters and long warm to hot summers.  According to Troll-Paffen climate classification, Valencia has a "warm-temperate subtropical" climate ("Warmgemäßigt-subtropisches Zonenklima") and according to Siegmund/Frankenberg climate classification, Valencia has subtropical climate.

Climate of Lisbon: Lisbon and its metropolitan area has a Subtropical-Mediterranean climate (Köppen climate classification: "Csa"), with short and very mild winters and warm summers.  According to Troll-Paffen climate classification, Lisbon has a "warm-temperate subtropical" climate ("Warmgemäßigt-subtropisches Zonenklima").  According to Siegmund/Frankenberg climate classification, Lisbon has a subtropical climate.

Humid subtropical climate: A humid subtropical climate is a zone of climate characterized by hot and humid summers where tropical air masses dominate, and mild winters.  These climates normally lie on the southeast side of all continents, generally between latitudes 25° and 35° and are located poleward from adjacent tropical climates.  While many subtropical climates tend to be located at or near coastal locations, in some cases they extend inland, most notably in China and the United States.

Climate of Barcelona: Barcelona and its metropolitan area have a humid subtropical climate (Köppen climate classification: "Cfa"), bordering a Mediterranean climate ("Csa") with mild winters and hot summers.  According to Troll-Paffen climate classification, Barcelona has a "warm-temperate subtropical" climate ("Warmgemäßigt-subtropisches Zonenklima").  According to Siegmund/Frankenberg climate classification, Barcelona has a subtropical climate.  Barcelona is located on the eastern coast of the Iberian Peninsula, so Atlantic west winds often arrive in Barcelona with low humidity, producing no rain.  The proximity of the Atlantic, its latitude, and the relief, are the reasons why the summers are not as dry as in most other Mediterranean Basin locations.

List of locations with a subtropical climate: This list of locations with a subtropical climate specifically lists locations considered within the subtropics.  The subtropics are geographic and climate zones located roughly between the Tropic of Cancer and Tropic of Capricorn and the 40th parallel in both hemispheres.  Subtropical climate regimes can exist at high elevations within the tropics, such as across the Mexican Plateau and in Vietnam and Taiwan.  Six climate classifications utilize the term to help define the various temperature and precipitation regimes for the planet Earth.  Using the Trewartha climate classification eight or more months of the year within the subtropics have an average temperature at or above 10 °C .  The Köppen climate classification instead classifies the warmest month above 22 C and the coldest above 0 C or -3 C depending on preference.

Supporting paragraphs: Antebellum architecture Plantations in the American South
Answer: Georgian, Neo-classical, and Greek Revival