Which of the Following Is True Concerning Infants' Utterance of Their

Which of the following is true concerning infants' utterance of their first word?

A) Out of the blue, around their first birthdays, children will simply utter a word such as "juice."
B) As soon as infants utter their first word, all other forms of communication such as gesturing stop.
C) An infant's first word is preceded by frequent sound combinations (e.g., dee-dee) .
D) Infants' first words do not build on earlier babbling skills.