Brian and Tamara Are Concerned Because Their 12-Month-Old Son Has

Brian and Tamara are concerned because their 12-month-old son has yet to speak his first word. What would an expert in child development most likely tell Brian and Tamara?

A) They should be concerned because most children speak their first word before their first birthday.
B) They shouldn't be concerned because boys develop speech much later than girls.
C) They shouldn't be concerned because children's normal range for speaking their first word is between 8 and 18 months of age.
D) They shouldn't be concerned because most children speak their first word after 24 months