<p></p>(2) A person shall not be a citizen of Singapore by virtue of clause (1) if at the time of his birth — <dl><p></p>(a) his father, not being a citizen of Singapore, possessed such immunity from suit and legal process as is accorded to an envoy of a sovereign power accredited to the President;</dl><dl><p></p>(b) his father was an enemy alien and the birth occurred in a place then under the occupation of the enemy; or</dl><dl><p></p>(c) neither of his parents was a citizen of Singapore</dl>