The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
This new tunnel revolutionized transportation in Europe and overcome this physical barrier because the Swiss engineers built the world's deepest and longest tunnel in the world, increasing the effectivity of train freight transportation across Europe. 
We are talking about the Gotthard base tunnel, in Switzerland. According to the article "Swiss create the world's longest tunnel," was so complex to build that engineers and workers lasted 20 years to complete. It is a tunnel for trains. It has 35 miles of longitude and crosses the Alpes mountains.
 
        
             
        
        
        
sparta i believe. sorry if i’m wrong but i think that’s right
        
                    
             
        
        
        
The right to a lawyer in Texas for those who cannot afford one is most often handled in criminal cases by free legal counsel from lawyers in the community or reimbursement of local lawyers.
Legal counsel is a person or business that provides advisory services on a variety of topics, especially legal situations including negotiations. The terms "legal counsel" and "lawyer" are frequently used synonymously.
The role of a legal counsel is that of a general attorney who works for the corporation and is not an independent contractor. To ensure that rules are followed, they collaborate with management and staff members inside their company. Additionally, a Business Attorney who manages all corporate legal procedures collaborates closely with them.
Learn more about legal counsel here:
brainly.com/question/28157146
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Athen's was close to the sea so it was easy to trade with others