निम्नलिखित में से कौन सा अधिगम का सिद्धांत ई.एल. थार्नडाइक द्वारा प्रस्तावित नहीं है?

A teacher recognising diverse learning styles in her class is applying which of the following approaches?

Assertion (A): Skinner's Programmed Instruction is based on the principles of operant conditioning including immediate reinforcement and small steps. Reason (R): Programmed Instruction allows learners to progress at their own pace and receive immediate feedback on responses.