Four jobs to be executed on a single processor system arrive at time 0 in the order A, B, C, D . Their burst CPU time requirements are 4, 1, 8, 1 time units respectively. The completion time of A under round robin scheduling with time slice of one time unit is
(A) 10
(B) 4
(C) 8
(D) 9

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  void foo(int x, int y)
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  }
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  (B) 5 and 12
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