Multiple Choice
Celia has noticed that her 7-month-old daughter has recently begun to raise and lower the pitch of her voice when she babbles so she sometimes sounds as if she's asking questions. Celia's daughter has added ________ to her babbling.
A) cooing
B) repetition
C) vowel sounds
D) intonation
Correct Answer:

Verified
Correct Answer:
Verified
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