Cloze Test I: Many of us believe that the way to become ....(1)…… and healthier is by spending money on ourselves. We put in extra hours at work and save up money to be able to buy the things that we believe will ...(2).... us happiness. In a study, the researchers looked at whether spending money on others could actually cause a reduction in blood pressure. ....(3) ..... on three days during a six-week study, 73 participants with high blood pressure were instructed to spend $40 given to them by the researchers. Half ...(4).... to spend the money on themselves, while the other half were told to spend the money on others. The researchers found that the participants who ....(5).... money on others had lower blood pressure at the end of the study. Notably, this effect appeared to be as large as the benefits of healthy diet and exercise. Which is the best choice for the blank .......(1).......?
1  happy
2 happier
3  the most happier
4 the happiest