1
2
3
4
Correct answer is C
(n ⊕ 4) ⊕ 3 = 0 (mod 5)
(3 ⊕ 4) ⊕ 3
12 ⊕ 3 = 15 (mod 5)
(5 x 3 + 0) = 0 (mod 5)
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