Which of the following is incorrect orde...

Which of the following is incorrect order ?
(A) Acidic strength :- `NH_3 < PH_3 < AsH_3`
(B) Ionisation energy :- `C < O < N < F`
(C) Electron affinity :- `I< Br < F < Cl`
(D) Bond polarity :- `HCl < HF < HBr`

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