C because most literature is read by much older people then those who listen to story-telling
A connotation is a word that suggests a meaning as to its literal meaning. An example would be pus immediately we thing of it as a negative or even icky word and it has a negative or "pejorative" connotation, when it is really a thick, yellow thing from a infected wound.
I think it is because Balboa considers himself a great explorer like Cristobal Colon (Cristopher Columbus) and Vespucci and the Pizarro brothers. the Of course Cristobal Colon discovered the Americas as did Vespucci whose first name was Amerigo so America was named after him. The Pizarro brothers discovered Peru with its' riches of gold and silver and the empire of the Incas.,Balboa was the first explorer to reach the Pacific Ocean by land over the isthmus of Panama. He later founded a settlement in Panama.
A. By describing the surroundings of Mio, it creates a mystical, mysterious tone.