How many students are in Ms. Jackson’s class?
A. 10
B. 15
C. 23
D. 25

Option B) 15 is the total number of students in Jackson’s class.
Step-by-step explanation:
From the given Venn diagram,
we can determine the following information :
To find the total number of students :
The formula to find the total number is given by,
Total = Group 1 + Group 2 - Both + Neither
Here, we have group 1 as band and group 2 as orchestra.
Total number of students = 10 + 8 - 5 + 2 ⇒ 15 students. (option B)