The final exam grade distribution for all students in the introductory statistics class at a local community college is displayed in the table, with A = 4, B = 3, C = 2, D = 1, and F = 0. Let X represent the grade for a randomly selected student from the class. What is the standard deviation of the distribution?

A) 1.16

B) 1.08

C) 1.41

D) 2.98