Let S be an NP-complete problem, Q and R be two other problems not kno – McqOptions

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1.	Let S be an NP-complete problem, Q and R be two other problems not known to be in NP. Q is polynomial-time reducible to S and S is polynomial-time reducible to R. Which one of the following statements is true?
A.	R is NP-complete
B.	R is NP-hard
C.	Q is NP-complete
D.	Q is NP-hard
Answer» B. R is NP-hard

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