Upon a deep analysis of the comparative and fundamental nature of Edward Thorndike's 'Trial and Error Theory', Ivan Pavlov's 'Classical Conditioning', and B.F. Skinner's 'Operant Conditioning', which of the following statements is most authentic and scientifically true regarding the stimulus-response relationship and operating mechanism of these three behaviorist learning theories?

In Thorndike's learning theory, a connection (S-R Bond) is primarily formed between the stimulus and response in which the laws of exercise and effect operate. According to classical conditioning, conditioning is established by presenting the conditioned stimulus (bell) just before the unconditioned stimulus (food). On the other hand, B.F. Skinner's operant conditioning is based on the premise that the organism acts actively in the environment, and the reinforcement received after its response determines the frequency of behavior, which is referred to as the R-S (Response-Stimulus) paradigm.