Study the following information carefully and answer the question given below: Eight people viz. A, B, C, D, P, Q, R and S are sitting in a straight line. They all are facing north. Each one of them has a different age i.e. 14, 16, 17, 19, 21, 23, 26 and 31 year, but not necessarily in the same order.
B sits at one of the extreme end of the row. There are three persons sitting between C and Q. Q is neither 14 nor 19yr old. There are two persons sitting between D and the person whose age is 23yr. Neither Q nor D is the oldest person. Age difference of immediate neighbours of D is 5yr. A sits right to the R, but not immediate right. There are three persons sitting between B and the one whose age is 16yr. The one whose age is 19yr sits third to the right of C. R sits to the right of B. Q sits second to the right of the person whose age is 23yr. P sits immediate left' of the person whose age is 14yr. Q is not youngest person. The one, whose age is 31yr in not immediate neighbour of the youngest person, C is not the fourth oldest person.
What is the age difference of A's immediate neighbours?

Options

A. Three
B. Seven
C. Five
D. Six

Answer

D

Explanation