For the first question regarding which study would best be done through a focused interview, the best option is:
An in-depth study of what moviegoers liked and disliked about a new theater.
Focused interviews allow for deep exploration of specific topics and provide qualitative insights, which is suitable for understanding individual preferences and opinions.
For the second question about characteristics of an open question, the correct response is:
It may result in unexpected information.
Open questions encourage detailed responses and can lead to insights that the questioner may not have anticipated, making them valuable for exploratory research.