What is a condition that prohibits SIC from taking off with passengers on board during their first 100 hours in type?

The correct answer highlights a specific limitation that relates to the safety and operational experience of a Second in Command (SIC) during their initial flight hours in a particular aircraft type. When a SIC has accumulated fewer than 100 hours in that aircraft type, they are subject to stricter operational limitations to ensure safety until they achieve more experience.

One such condition is that the wind speed cannot exceed a certain threshold, which in this case is identified as greater than 20 knots. This restriction is in place because higher wind speeds can complicate the takeoff process, especially for someone who is still familiarizing themselves with the aircraft's handling characteristics. The limitations exist to mitigate risks associated with inexperience and to promote safer flight operations.

The other options, while related to aviation weather conditions, do not represent specific prohibitions placed on SICs during their first 100 hours in type. Cloud cover and visibility parameters are important for flight safety, but they do not specifically relate to the limitation imposed on SICs within this context. Therefore, the focus on wind speed as a limiting factor for takeoff with passengers on board underscores the necessity for new pilots to operate under more controlled and predictable conditions during their initial flight experiences.