In the context of the 'Domains and Theories of Learning', according to the main conclusion of Edwin Guthrie's 'Contiguity Theory of Learning', which of the following conditions or factors is considered most essential and sufficient for establishing an association between a stimulus and a response?

Explanation

Edwin Guthrie's Contiguity Theory emphasizes that the basis of learning is the simultaneous occurrence of a stimulus and a response.

• According to Guthrie, if a response occurs together with a stimulus once, the exact same response is likely to occur the next time that stimulus is present (also known as 'One-Trial Learning').
• Unlike Thorndike, Guthrie argued that rewards or reinforcement are not mandatory for learning; rather, mere temporal and spatial contiguity is completely sufficient.

Therefore, Option B is the correct answer.