Observe the following pyramid of letters and decide which alternative will be in place of question mark in each of the following question.
1. acdj : ? :: eilt : ehnq
(A) abfg
(B) acdi
(C) acei
(D) abfh
2. vihx : uwxt :: ? : pazq
(A) abde
(B) bdez
(C) dbaz
(D) azed
3. jktljt : goqngq :: ilsmis : ?
(A) hnrmhr
(B) hnmmr
(C) hnrmhn
(D) hrmnhn