The extrinsic motivation that are the most effective in the long range is cash prizes. So, the correct option is (a) cash prizes.
Behavior that is motivated by benefits from outside sources is known as extrinsic motivation. These incentives may be material, like cash or grades, or immaterial, like acclaim or celebrity. Extrinsically motivated individuals will keep at a task even if it isn't particularly enjoyable in and of itself.
For instance, someone might perform a task at work that they dislike in order to pay their bills.When someone or anything is trained to perform a certain way as a result of a reward or consequence, operant conditioning—also known as conditioning—involves extrinsic motivation.
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