Final answer:
The process of learning language involves reinforcement, successive approximations, and extinction.
Step-by-step explanation:
The process of learning language involves reinforcement, successive approximations, and extinction.
Reinforcement refers to the act of receiving feedback or approval when using language correctly. For example, a child saying 'me juice' and receiving a cup of apple juice as a response.
Successive approximations involve gradually improving language skills by practicing and refining them over time. For instance, a child initially saying 'me juice' and eventually learning to say 'I want some juice.'
Extinction occurs when language usage is no longer reinforced or encouraged, leading to a decrease in language skills.
Therefore, the correct answer is D) All of these.