Question

the one-word stage usually occurs ______. from three to four months old for most one year olds for most two to three year olds

Explanation:

The one - word stage of language development typically occurs around the age of one year. Three to four - month - old infants are in the pre - linguistic or early vocalization stage (like cooing), and two - to - three - year - olds are usually in the two - word or telegraphic speech stage. So the one - word stage is common for most one - year - olds.

Answer:

B. for most one year olds