Which is the correct way to complete the paragraph below?...

Questão de Sem disciplina da banca Marinha aplicada no concurso ESCOLA NAVAL (2015). Confira a resolução completa abaixo:

Q1047295•
Sem disciplina•
Verbos Verbs•
Marinha•
ESCOLA NAVAL•
Cadete do Exército

What Explains Brazil's Surfing Boom?

Brazil _____ more than 4,000 miles of coastline, andBrazilians _______ its waves at least since the Australiansurfer Peter Troy ______ a demonstration in Rio de Janeiroin 1964. So why the sudden dominance? The answer is that thecountry itself ______ .

(http://nytimes.com).
Which is the correct way to complete the paragraph below?