The $Scala \text{ } tympani$ of the membranous labyrinth ends at $A$, which opens into $B$. Identify $A$ and $B$ and select the correct option.

  • A
    $A - \text{Oval window}, B - \text{pharynx}$
  • B
    $A - \text{Round window}, B - \text{middle ear}$
  • C
    $A - \text{Round window}, B - \text{external auditory meatus}$
  • D
    $A - \text{Oval window}, B - \text{middle ear}$

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