What does research on language acquisition in deaf individuals indicate?

A) No system of functional communication can be developed in the absence of auditory stimuli.
B) Sign language is unlike spoken language because it has few morphemes and it lacks syntactical structure.
C) Similar developmental stages exist for the acquisition of sign language in deaf children and spoken language in hearing children.
D) Sign language only permits very primitive and basic communication between individuals.

Developmental Stages

Phases or periods of growth and development in humans that occur from infancy through adulthood, characterized by distinct physical, cognitive, and social milestones.

Sign Language

A language that uses manual communication and body language instead of sound to convey meaning, used primarily by the deaf and hard of hearing.

Auditory Stimuli

Sounds that are perceived by the ear, ranging from simple tones to complex noises, which can influence psychological and physiological responses.