Why Are Most South American Meat Dishes Braised, Ground or Shredded

Why are most South American meat dishes braised, ground or shredded?

A) It is the only way to use the whole carcass.
B) That way they can cook the whole animal all at once to feed an entire town or small city.
C) Animals tend to be leaner and less tender because of harsh living conditions.
D) The quality cuts of meat are always exported to other countries.