Final answer:
The motive to achieve success is most related to intrinsic motivation, as it comes from within the individual and is driven by personal satisfaction. The motive to avoid failure is most related to fear of failure, an extrinsic motivation.
Step-by-step explanation:
The motive to achieve success is most related to intrinsic motivation, as it comes from within the individual and is driven by the sense of personal satisfaction that success brings. On the other hand, the motive to avoid failure is most related to fear of failure, which is an extrinsic motivation driven by the desire to avoid negative outcomes.