Match List I (Word) with List II (Code) and choose the correct answer from the options given below.

List I

i.QUAKE

ii.OFTEN

iii.PEACH

iv.DRIVE

List II

a.QDBBI

b.EQJUF

c.RTBJF

d.PEUDO

Ai-a, ii-b, iii-c, iv-d

Bi-b, ii-c, iii-d, iv-a

Ci-c, ii-d, iii-a, iv-b ✓ Correct

Di-d, ii-a, iii-b, iv-c

Correct answer: (C) i-c, ii-d, iii-a, iv-b

Explanation

Each word is enciphered by alternately adding and subtracting one across its letters.

The letters shift by plus one, minus one, plus one, minus one, plus one in turn.

QUAKE becomes RTBJF as Q up, U down, A up, K down, E up.

OFTEN becomes PEUDO under the same alternating shift.

PEACH becomes QDBBI and DRIVE becomes EQJUF by the identical rule.

One consistent alternating shift of one fixes every pairing.

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