Read the sentence below and choose the alternative that rewrites it using a syno...

Questão de Inglês da banca CETRO aplicada no concurso AEB (2014). Confira a resolução completa abaixo:

Read the sentence below and choose the alternative that rewrites it using a synonym to the underlined word.

Our nation is embarked on an ambitious space exploration program, and we owe it to the American taxpayers to get it right.