It is important to try different kinds of dark chocolate.
It could be ex peculated that after confronting the teacher, Marcus would back down because he might feel threaten. The teacher asked him if he knew that "Zero - tolerance mean" and that could be taken as a tense situation, he might have to options. To apologise to him or face the consequences within this "zero tolerance" atmosphere. <span />
Situational irony. Jeremy's test was on time management, which he wasn't displaying as he was cramming.