Determine what the key terms refer to in the following survey. To determine the average number of classes Santa Ana College students were taking, a group of 21 Santa Ana College students were given and answered the following survey. How many classes you are taking this semester. 1 2 3 4 What sentence is Population A. The 21 Santa Ana College students who were surveyed B. In average, those 21 students were taking 2 classes C. All students in Santa Ana College In average, all students in Santa Ana D. College were taking 2.3 classes