Select the example that would make the best evidence for challenging the aphorism:
The rotten apple spoils his companion.
1) a young boy is persuaded by his brother to join a violent gang
2) students ignore a bully’s attempt to get them to tease the new kid
3) a student pressures another student to cheat on the end of year exam
4) people with a highly contagious disease are quarantined to keep others safe
