Wun Hong On, a lawful permanent resident, though not a citizen, applied for a job as a typist-clerk with the State of Uwahu Sanitation Department. The Sanitation Department refused to consider Wun's application because Wun was not a citizen. In order to exclude Wun, and other lawful permanent residents from civil service jobs, the State of Uhawhu must show:

a) a rational basis for the exclusion

b) a compelling state interest for the exclusion

c) Both a and b

d) none of the above