Select the difference between forward and backward chaining procedures. Group of answer choices 1. All options show the differences between the two procedures. 2. Only in the backward chaining procedure, the learner will encounter the terminal outcome in the initial sessions. 3. Only in the backward chaining procedure, the learner will eventually complete the entire behavior chain even though some parts of the chain are completed by the practitioner initially. 4. In forward chaining, the practitioner begins by teaching the first step, while the practitioner would teach the last step in backward chaining first