Select the best statement describing a case study. A) Begin with the problem. There may be very little information available. There may be very little structure B) Allow students to look at how concepts and skills they have learned or developed can be applied to real world situations C) The student is performing a task or set of tasks in an environment set to emulate a real-world environment D) The student's observation and thinking skills are on display as well as their ability to reflect on their learning