<prompt> Middle ear effusion with intact eardrum gives rise to which type of tympanogram?Type AType BType CType D  <response>: Type B tympanogram is flat in appearance, indicating lack of compliance. The volume measurement that is simultaneously performed with tympanometry helps to differentiate between a flat tympanogram suggesting an intact eardrum with middle ear effusion and a perforated eardrum or patent ventilating tube. 