निम्नलिखित में से किस मनोवैज्ञानिक ने यह प्रस्ताव दिया कि अधिकांश मानव व्यवहार अवलोकनात्मक अधिगम और मॉडलिंग (प्रतिरूपण) के माध्यम से सीखा जाता 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.