Which of the Following Is a Criticism of Skinner's Model

Multiple Choice

Which of the following is a criticism of Skinner's model of language acquisition? ​

A) Its concepts are extremely vague. ​
B) Children don't seem to learn transformational rules as Skinner said they should.
C) It is unreasonable to expect children to learn an infinite number of sentences by imitation.
D) Children don't respond to positive reinforcement until they are in preschool, after language is already established.