Research on the Occurrence of Word Spurts Indicates That

Research on the occurrence of word spurts indicates that:

A) the majority of children have a noticeable word spurt between 14 months of age and the time that they learn 75 words.
B) children who have word spurts have a concurrent increase in the use of object labels.
C) all normally developing children have word spurts.
D) None of these answers are true.