Section 1. The following are citizens of the Philippines:
Those who are citizens of the Philippines at the time of the adoption of this Constitution.
Those whose fathers and mothers are citizens of the Philippines.
Those who elect Philippine citizenship pursuant to the provisions of the Constitution of nineteen hundred and thirty-five.
Those who are naturalized in accordance with law.
Section 2. A female citizen of the Philippines who marries an alien retains her Philippine citizenship, unless by her act or omission she is deemed, under the law, to have renounced her citizenship.
Section 3. Philippine citizenship may be lost or reacquired in the manner provided by law.
Section 4. A natural-born citizen is one who is a citizen of the Philippines from birth without having to perform any act to acquire or perfect his Philippine citizenship.