Answer:
A) Extinction, positive reinforcement, negative punishment, positive punishment
Step-by-step explanation:
1. Extinction: this happened when there is no reply to actions. Thereby making such action to lose what has been reinforcing it to continue. Hence, "ignoring them" is a form of Extinction
2. Positive reinforcement: this is a method of encouraging an incentive after a certain action or behavior is done. The purpose is to make such behavior occurs in the future. Hence, "encouraging and rewarding them for contributing to the class discussion" is a form of Positive reinforcement
3. Negative punishments: this occurred when what is enhancing a specific action is eliminated after its occurrence, thereby ensuring the lesser chance of its occurrence in the future. Hence, "removing their opportunities to participate in field trips" is a form of negative punishment.
Positive punishment: this involved adding a certain task to quell or stop the occurrence of bad behavior in the future. Hence, "requiring them each to write an essay on proper behavior" is a form of positive punishment.