Match the Following Type of Interview with the Correct Approach

Match the following type of interview with the correct approach used:
-Focus Group

A) Involve asking an agreed upon set of questions, generally formulated around findings of a literature review.
B) Researcher has guidelines rather than a set of questions, giving them the ability to feel out the conversation and ask questions accordingly.
C) Best defined as a group interview, with a predetermined set of questions, and also having the leeway to explore comments.