Which strategy is a way to increase happiness?
make good decisions.
limit chances of failure.
generate more income.
pay closer attention to your appearance.

Making better decisions. If you try to limit your chances of failure... it's basically a 50/50. You don't really know unless you can foresee the future. Generating more income is something that would only allow you to buy more things and unless you are materialistic you will not care. Paying attention to how you look is basically making you feel pretty, not happy. There is a difference. The only option is A because if you pick to give a homeless person food rather than throwing it away, it'll make you feel better about yourself.