A vowel sound can be produced with

LIST I (Book/Theory proposed/Characteristic, etc.)	LIST II (Author/Thinker/Name of Theory, etc.)
A. Velar	I. क, ख, ग
B. Palatal	II. च, छ, ज, ञ
C. Dental	III. त, थ, द, ध
D. Glottal	IV. ह

LIST I	LIST II
(A) Bilabial	(II) Upper lip and lower lip
(B) Glottal	(I) Glottis (Vocal cords)
(C) Dental	(IV) Teeth and tip of tongue
(D) Palatal	(III) Hard palate and front of tongue

LIST I	LIST II
(A) Phonology	(II) Study of speech sounds
(B) Syntax	(III) Study of arrangements of words in sentences
(C) Semantics	(I) Study of meaning
(D) Morphology	(IV) Study of a structure of and classes of words

A vowel sound can be produced with...