The front vowels are produced when:
AThe lips are rounded
BThe lips are unrounded
CThe front of the tongue is raised in the direction of the hard palate
DThe front of the tongue is raised in the direction of the soft palate
AThe lips are rounded
BThe lips are unrounded
CThe front of the tongue is raised in the direction of the hard palate
DThe front of the tongue is raised in the direction of the soft palate