Answer:
Darren is using C. shaping to get his son to eat his peas.
Explanation:
Shaping is a tactic used within Operant Conditioning, which is understood as the process for a subject to <em>acquire a certain behavior</em> through reinforcements.
Shaping occurs when the reinforcements occur during a successive pattern of the behavior, not only whenever a behavior is present.
We can see it clearly in this example; Darren <em>slowly starts to praise </em>(reinforce) his son's behaviors, <em>gradually moving</em> from moving his fork towards the peas until he moves the fork with the pea to its mouth.
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Hope that helps! -UF aka Nadia</span>
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