Extinction is a concept in behavioral learning that describes what happens when rewards for a certain behavior are withdrawn. This can lead to the behavior being reduced or eliminated over time. However, reconditioning behavior after extinction does not take as long as it did before extinction, as there is still some memory or association of the behavior and the reward.Therefore, only statement 1 is true. References: https://apmg-international.com/sites/default/files/Change%20Management%20Foundation%20Sample%20Paper%2013%20-%20v1.0.pdf (page 11)