Postalveolar Consonants /, / Are Produced with The

Postalveolar consonants /, / are produced with the:

A) tongue tip touching the palate, and the sides of the tongue anchored along the sides of the teeth.
B) tongue creating a blockage in the air flow just behind the alveolar ridge.
C) tongue raised towards the palate, behind the alveolar ridge, and the tongue anchored along the sides of the teeth.
D) lips rounded and the tongue tip touching the alveolar ridge and the sides of the tongue braced against the sides of the teeth.