Which One of the Following Students Best Fits the Pattern

Which one of the following students best fits the pattern associated with being at risk?

A) Sal started kindergarten a year later than his peers because his parents wanted to be sure he was socially mature enough for school.
B) Wesley has recently failed sophomore algebra,and he is frustrated because he now has to go to summer school.
C) Evan is doing poorly in all his classes because of repeated absenteeism and failure to turn in assignments.
D) André isn't doing very well in any of his classes; he will have to pull up his grades or he won't be allowed to continue to participate in varsity football.