Final answer:
In echoic behavior, when articulation patterns by the child correspond to those of the adult, the speech patterns also overlap.
The answer is option ⇒B. Articulation patterns, speech
Step-by-step explanation:
Echoic behavior refers to the imitation of sounds or words. In this context, it means that when a child imitates the way an adult speaks, including the way they articulate words, the speech patterns of the child and the adult will overlap.
For example, if a child hears an adult say the word 'cat' and then tries to repeat it, their articulation patterns, such as the way they move their mouth and tongue to produce the sounds, will be similar to those of the adult.
The answer is option ⇒B. Articulation patterns, speech