The part of the ear which distinguishes different pitches of sound is

The middle ear contains three tiny bones:
$I.$ Maxillae
$II.$ Malleus
$III.$ Incus
$IV.$ Stapes
$V.$ Vomer

The middle ear and Eustachian tube of a rabbit are derived from.....

Malleus is a part of

$P$ is a continuous tubular structure. Inside these tubes, $Q$ is arranged.
$\quad\quad\quad P \quad\quad\quad Q$
$(A)$ $Scala \text{ vestibuli} \quad$ $Scala \text{ media}$
$(B)$ $Scala \text{ media} \quad$ $Scala \text{ tympani}$
$(C)$ $Scala \text{ tympani} \quad$ $Scala \text{ media}$
$(D)$ $Scala \text{ media} \quad$ $Scala \text{ vestibuli}$

Select the incorrect statement from the following.