A toddler is being evaluated for developmental delays.At what age should a child typically be able to say at least 50 words?

Choice A rationaleAt 12 months, a child typically says their first single words with meaning, such as "mama" or "dada," and may understand simple commands. Reaching a vocabulary of 50 words is not expected at this early stage of language development.Choice B rationaleBy 24 months, most toddlers have experienced a significant language explosion and are typically able to say at least 50 words and are beginning to combine two words into simple phrases. This is a key milestone in language development.Choice C rationaleAt 36 months, a child's vocabulary has typically expanded significantly, often exceeding several hundred words. They are also using longer and more complex sentences. Saying only 50 words at this age would be considered a developmental delay.Choice D rationaleAt 15 months, children are typically in the stage of building their vocabulary beyond the initial single words. While some may be approaching a larger vocabulary, consistently saying 50 words is more characteristic of older toddlers closer to 24 months.