Correct option is C
A certain number of people are sitting in a row, facing north. Only four people are sitting to the left of C .
[ _, _, _, _, C ...
C is sitting third to the left of E .
[ _, _, _, _, C, _, _, E, ...
A is sitting fourth to the right of E.
[ _, _, _, _, C, _, _, E,_, _, _, A, ...
A is sitting fourth to the left of B.
[ _, _, _, _, C, _, _, E,_, _, _, A, _, _, _, B,...
Only three people are sitting to the right of B.
[ _, _, _, _, C, _, _, E,_, _, _, A, _, _, _, B, _ , _, _ ]
If no other person is sitting in the row,
what is the total number of persons = 19