Final answer:
Universal phoneme sensitivity is an innate ability in infants to discriminate between phonemes from any language, and it declines with age. C) It is a learned skill.
Step-by-step explanation:
Universal phoneme sensitivity refers to the ability of infants to discriminate between phonemes from any language. The correct option among the given choices that is NOT true of universal phoneme sensitivity is C) It is a learned skill. Phoneme sensitivity is actually a natural ability present from birth. Infants can initially differentiate between the sounds of all human languages, but as they grow older, their sensitivity becomes specific to the phonemes used in their native language. This decline in universal phoneme sensitivity with age is supported by research studies (Jensen, 2011; Werker & Lalonde, 1988; Werker & Tees, 1984).