Citizens of a nation state are expected to do all of the following except recruit citizens of other states.
Option-d.
Step-by-step explanation:
When it comes to duties, citizens are to perform a a large number of duties and exercises a large arsenal of rights to ensure harmony and peace in a nation sate.
Citizens are expected to defend the nation from detractors to keep themselves safe and promote peace and harmony, embrace and promote the national culture in order to inculcate and teach the same cultural practices to their children and carry them forward and speak the national language in order to keep the identity and significance of their language at a respectful position in international tables.