The correct statements are:
Panama City is a popular place for retirement. - Panama has a low cost living, Panama also provides retirement visas and special benefits for retirees.
Spain was the first country to think about a canal through Panama. - The Spanish explorer Vasco Nunez de Balboa was the first European to discover that there was a small portion of land separating the Atlantic and Pacific oceans.
Panama is the location of the canal because it has the narrowest piece of land in Central America. - The Panama Canal has 82 km about 51 miles and connects the Atlantic Ocean with the Pacific Ocean. The Canal is located between Nergalá River and the Chepo River, called Isthmus.
Public transportation is a convenient way to get around Panama City. - Panama City has a train, bus, and metro. The Fares are cheap.
There is a major university in Panama City. - The Florida State University is the major university in Panama City.