Under Ivan Pavlov's 'Classical Conditioning Theory', regarding the actual psychological implications of the processes of 'Extinction', 'Spontaneous Recovery', 'Stimulus Generalization', and 'Discriminative Conditioning' and their scientific management and regulation of students' fears, prejudices, and habits in classroom teaching, which of the following psychological statements is most authentic and scientifically valid?

In Ivan Pavlov's classical conditioning theory, 'Extinction' is the process in which presenting the conditioned stimulus (CS) repeatedly without the unconditioned stimulus (UCS) causes the conditioned response (CR) to fade. However, after some rest, if the same CS is presented again, the response reappears to some extent, which is called 'Spontaneous Recovery'. It is extremely important for teachers in classroom teaching to understand that despite the extinction of students' undesirable behaviors or fears (learned through classical conditioning), they can re-emerge in stressful situations; hence, continuous scientific management and a positive environment are required for their permanent improvement.