Final answer:
The situation can be interpreted in different ways due to cultural norms and potential misunderstandings.
Step-by-step explanation:
When individuals from different cultures interact, they may have different expectations regarding personal space. In this situation, the classmate moving back as the foreign exchange student approaches can be interpreted as a result of the two students having different cultural norms for personal space (a). This can lead to the foreign exchange student feeling rejected (b). Additionally, the classmate may perceive this behavior as the exchange student trying to become too familiar, which can cause misunderstandings (c). Therefore, the correct answer is d - the situation can be interpreted in all of these ways.