Original name of the host of Holy Prophet Abu Ayub Ansari is

(A) Zaid bin Sabit (R.A)
(B) Khalid bin Zaid (R.A)
(C) Qais bin Saad (R.A)
(D) Hanzla bin Aamir (R.A)

The answer is: (B) Khalid bin Zaid (R.A)
Original name of the host of Holy Prophet (PBUH), Abu Ayub Ansari (R.A), is Khalid bin Zaid (R.A).