Решение:
- В тексте сказано: "Tour guiding isn't just about knowing historical facts or making sure you don't lose anyone from your group in the crowds. There are many other necessary skills. You should be able to be entertaining and tell interesting stories, and above all, you need to be able to react to changing situations, for example, if a place that you thought was open is actually closed when you arrive, or a route changes."
- Это подчеркивает важность гибкости и умения справляться с неожиданными ситуациями.
- Варианты 1, 2 и 3 касаются других аспектов работы, но не выделены как самые важные.
Ответ: 4) dealing with unexpected events during a tour