Sixteen persons - \(P_1\) to \(P_{16}\)- are to be seated at a square table, which has four chairs along each side. What is the probability that \(P_7\) and \(P_{13}\) sit on two adjacent chairs on the same side?
A. 1/4
B. 1/10
C. 2/15
D. 1/20
E. 1/25
A. 1/4
B. 1/10
C. 2/15
D. 1/20
E. 1/25
