It's definitely not walking. my guess is soccer.
You didn't really provide any of the following, because of which many things could be considered true here. What could have happened is that Jim really had a cold today. What could also have happened was that Jim was just afraid and just wanted to postpone this.
The timer/recorder team member I think?
1) This type of conditioning is called classical conditioning. We learned that Jenny is always associating her room as a very cold environment. Because of this, she starts to <em>anticipate</em> this coldness that she even starts to shiver before she enters the room. Associating two events together is part of classical conditioning.
2) For this item, the type of conditioning shown is called operant conditioning. Operant conditioning is defined as having a change in behavior because of a reinforcement or a punishment. In this case, Jake is met with a punishment in the form of the ticket that's why his behavior changed.
3) This item is also an example of classical conditioning. Because you really disliked the sheep's brain, you started changing your behavior towards it that even something only <em>similar</em> to the brain makes you react unpleasantly. Here, you associated the brain (or the sight of something similar) to your very unpleasant experience in biology.
4) This one is another example of operant conditioning. Here, instead of being punished, you are offered a reinforcement in the form of a compliment. Because of this compliment, you decided to continue your haircut. Thus, the reinforcement successfully influenced your "behavior".
I think the best answer is B. an unexpected visit.