I NEED HELP, PLEASE HELP ME #16: Part A - Choose the central idea for the following passage.

Not meeting your goals can because people to lose hope, but aiming high might have its benefits regardless. In a study that lends support to the old cliché about shooting for the moon, researchers found that participants who were assigned higher goals for daily step counts walked more than those who had medium or low goals, even if they didn't quite reach their target. The experiment involved 148 university employees. Another experiment involved 64 individuals who compared steps they walked when participants received individual feedback versus social comparison feedback. The individual feedback group simply logged their steps and received emails reminding them to input their data. When the social comparison group logged their steps, they received emails about how they performed compared to the other participants. The social comparison group walked more than those who received only individual feedback. The researchers suggest that these findings indicate the importance of reference points, either established through high goals or comparison between peers, in changing behavior.

Group of answer choices

1) Comparing yourself to others may result in a person getting better results.

2) Tracking your steps no matter the goal will cause you to walk more.

3) Businesses are trying to find ways to get employees up and moving.

4) High goal setting is difficult for most people.

#16: Part B - How does the author develop the central idea in question #16, Part A?

1) by describing the results of the study

2) by stating his opinion

3) by listing why people don't reach goals

4) by explaining how to walk more