[25 points]"i hereby declare, on oath, that i absolutely and entirely renounce and abjure all allegiance and fidelity to any foreign prince, potentate, state or sovereignty, of whom or which i have heretofore been a subject or citizen; that i will support and defend the constitution and laws of the united states of america against all enemies, foreign and domestic; that i will bear true faith and allegiance to the same; that i will bear arms on behalf of the united states when required by the law; that i will perform noncombatant service in the armed forces of the united states when required by the law; that i will perform work of national importance under civilian direction when required by the law; and that i take this obligation freely without any mental reservation or purpose of evasion; so me god."

who would speak the text above, and in what situation?

a) a native u. s. citizen who has been accused of failing in his or her duties.
b) a legal citizen of another country who wishes to return to his or her home country.
c) an immigrant to the united states who has been arrested by the police.
d) a person becoming a naturalized u. s. citizen who is taking the oath of allegiance.