Answer:
<h2>2. ( D)</h2>
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The two main ideas behind the Behaviorist theory from Lightbown & Spada's is imitation and practice.
<h3>What is Behaviorist theory?</h3>
Behaviorist theory states that every person behavior is the influence of its environment. It also says that the behavior is influenced very much by the surrounding environment, and very less influence of the inherited behavior.
Thus, the two main ideas behind the Behaviorist theory from Lightbown & Spada's is imitation and practice.
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It was a transformation of human life circumstances
