Emily Sister of Little Brother John (age 19) to spend less time goofing off and getting into trouble and more time studying for his freshman classes at College.If he does, she promises to give him a brand-new Xbox One X at the end of the semester.

Which of the following return promises would be most likely to provide legally sufficient consideration for Sister's Emily promise?

Group of answer choices

Brother John promises not to hang out with his friends reenacting epic Grand Theft Auto drag races

Brother John promises to refrain from drinking Natty Lite while studying

Brother John promises to take a class in mindfulness and meditation

Brother John promises not to "sneak into" the video arcade after hours to play video games

Which answer is correct above, choose only one option?

County USA