What is the best advice to give to someone moving from a low-context culture to a high-context one? Try to act more politely and formally Expect to feel out of your comfort zone Expect more loose and unwritten agreements Have more time to build relationships

I believe the best option is letter C. Expect more loose and unwritten agreements.

Explanation:

Low-context cultures are characterized by explicit words and behaviors. People are more straightforward, truly saying what they mean. On the other hand, high-context cultures show more concern for the collectivity and feelings of others. For that reason, people are more careful with their words, and a lot is said and interpreted through context - body language, tone of voice, gestures etc. For that reason, loose and unwritten agreements are more common in high-context cultures, since they come from interpretation of the situation and behaviors of others.