Function notation interpretation word problems

Interpret expressions with function notation in terms of the context that the function models.

Problem

Tessa's class had a math exam where the grades were between 0 and 10.
Let N, left parenthesis, g, right parenthesis denote the number of students N whose grade on the exam was g.
What does the statement N, left parenthesis, 8, right parenthesis, is greater than, 2, space, dot, space, N, left parenthesis, 5, right parenthesis mean?
Please choose from one of the following options.