• # question_answer Which of the following will come next in the series given below? nsi, org, pqe, qpc? A)  pqa                  B)  rqd C)  aor       D)  roa

[d] The first letter of each group moves + 1 steps, second letter moves $-1$ step and the third letter moves $-2$ steps. Thus, the next group of letters would be roa.