Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to think like an economist [title] Use self interest to motivate yourself and others. [step] When acting on just about anything, people will seek their own benefit. As a result, you shouldn't be ashamed to use self interest to motivate others or to act to benefit yourself.

Ending1: Money can come in huge amounts so have some cash in your pocket to cover your expenses. Even if you buy an expensive pair of jeans or a stylish summer outfit, don't be afraid to buy those items because you want to feel good about yourself. Ending2: It is not only for you, but for others around you (and for other individuals). [substeps] If you read this article, then don't dwell on this in the back of your head. Ending3: Self-motivated people are actually focused on their own contributions, and often even in their own lives. Spend a day indulging in tasks at the expense of others. Ending4: [substeps] People will push back or resist doing things if they don't see a benefit in completing the action. For example, your employees won't work longer or harder unless they get compensated (or realize another type of benefit).

Answer format: ending1/ending2/ending3/ending4