Final answer:
The correct sequence of early language development milestones in children is: Cooing, Babbling, One-word phrases, Two-word phrases. Therefore, the correct option is C.
Step-by-step explanation:
The correct sequence of early language development milestones in children is:
Cooing, Babbling, One-word phrases, Two-word phrases
After birth, babies begin to coo, which is a one-syllable combination of a consonant and a vowel sound. Then, they start babbling, repeating syllables such as ma-ma or da-da. Around 12 months old, they utter their first word with meaning and then begin combining words for meaning at around 18 months old.