What is the mean of the data displayed in the line plot below?
A. 2
B. 4
C. 5
D. 6

The mean is the average.
Total the numbers and divide by the quantity of numbers.
2 +2 + 3 + 3 +4 +4 +4 +5 +5 +5 +5 + 6 = 48
48 / 12 = 4
The answer is B.4