Choose the correct spelling of the each given word:
1. Autitorium -
(A) Auditorim
(B) Auditorium
(C) Auditarium
(D) Auditorum
2. Professor-
(A) Professor
(B) Proffessor
(C) Profesor
(D) profesar
3. Neighboring -
(A) Neighbouring
(B) Neghboring
(C) Neboring
(D) Negbouring