A ten-year-old developmentally disabled client is able to say the words "mama" and "dada." This would be an example of which of the following language developmental levels?

The correct identification of the language developmental level for a ten-year-old developmentally disabled client who can say "mama" and "dada" aligns with the stage typically seen between 8-12 months of age. During this period, infants often begin to utter simple consonant-vowel combinations, which may include meaningful words like "mama" and "dada." These words represent early forms of communication and indicate that the child is starting to recognize and label important figures in their life.

Understanding typical language development milestones helps in recognizing where an individual's abilities fit within a range of expectations. In this case, the ability of a child at ten years old to say just a couple of words suggests significant developmental delays, particularly since children usually develop a more complex vocabulary well before this age, typically around 15 months when they can say several words and may begin combining them. Therefore, the milestone corresponding to the words "mama" and "dada" is accurately represented by the 8-12 months age range.