Advantages: Primary sources directly address your topic and often provide information that is unavailable elsewhere. For example, the questions you compose for an interview or a survey will likely target your unique interest in the topic. Similarly, to test a particular hypothesis, you can design your own experiment.
Disadvantages: Some primary sources, such as eyewitness accounts, may be too close to the subject, lacking a critical distance. Others, such as interviews, surveys, and experiments, are time consuming to prepare, administer, and analyze. Finally, unless you have been trained in accepted methodologies, your own primary research in certain fields of study may not be recognized as valid.
Sieur de La Salle wa the one who named it .
The 2nd & 3rd options
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Don’t drop the bomb from now and the 1945 so don’t drop bombs kids
A portico is a porch that leads to a building's entrance or is extended as a colonnade, with a roof structure over a walkway supported by columns or enclosed by walls. This concept was popular in ancient Greece and has influenced many cultures, including the majority of Western cultures.
In Greek and Roman architecture a peristyle is a columned porch or open colonnade in a building.
A colonnade is a row of columns spaced at regular intervals in classical architecture, similar to a balustrade. They can be used to support a horizontal entablature, an arcade, or a covered walkway, as well as as part of a porch or portico.
To know more about Greek and Roman architecture here
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