Mr. Hogan's class has 16 students in it. On picture day 5 students stand in the first row, 4 students stand in the second row, 3 students stand in the third row, and 4 students stand in the fourth row. If a random student blinks what is the probability that the student will be in the second or third row?
A. 1/4
B. 3/16
C. 5/16
D. 7/16