The membranes constituting cochlea, the ______________ (A) and ____________ (D), divide the surounding perilymph filled bony labyrinth into _____________________ (G) and _____________________ (E). The space within cochlea called __________________ (B) is filled with endolymph.

Question

( a ) reissner’s and basilar; an upper scala tympani and a lower scala vestibuli; scala media
( b ) basilar and reissner’s ; an upper scala tympani and a lower scala vestibuli; scala media
( c ) reissner’s and basilar; an upper scala vestibuli and a lower scala tympani; scala media
( d ) basilar and reissner’s ; an upper scala vestibuli and a lower scala tympani; scala media