Which one is not correct?

27 ≡ 3(mod 4) 11 ≡ 56(mod 9) 15 ≡ 3(mod 9) -4 ≡ -114(mod 11)

15 ≡ 3(mod 9)

The correct answer is Option (3) → 15 ≡ 3(mod 9)