How many students are enrolled in both C-1 and C-2?

To determine how many students are enrolled in both C-1 and C-2, it's essential to analyze the data provided, such as total enrollment numbers in each category and any overlap indicated.

The correct answer suggests that there are 12 students enrolled in both courses. This figure likely comes from an intersection calculation of students in both categories, possibly using a Venn diagram or set theory principles. If the total number of students enrolled in C-1 is combined with those in C-2, deducting any students counted twice (those enrolled in both) would yield a clearer understanding of the specific overlap.

Such a number often arises from a table or dataset indicating the total number of students in each course and the unique counts for each. The reasoning for landing on this number could involve the comparison of unique enrollments in each course, corroborated by a known total or another piece of information indicating how many overlap.

Thus, 12 is the figure representing the precise count of students taking both C-1 and C-2, ensuring an accurate representation of shared enrollments in the context of this question.