Find the best option that best completes the analogy. NPR : OQS :: XYZ : ?

Correct — A.
Rule: each letter moves +1.

N → O, P → Q, R → S: NPR becomes OQS.
X → Y, Y → Z, Z → A, wrapping past Z.

XYZ becomes YZA → option (a).

Why the others are wrong

• (b)
  ZAB — ZAB moves every letter +2: X → Z, Y → A, Z → B. The first pair moves each letter by 1, not 2.
• (c)
  YAC — YAC moves the letters +1, +2, +3. NPR to OQS moves all three by the same +1, so the steps cannot grow.
• (d)
  YAZ — YAZ moves X by 1 and Y by 2 and leaves Z where it is. The rule moves every letter +1, so Z must become A.

A letter-cluster analogy hides one transformation in the first pair. Convert to positions and compare letter by letter: N(14) to O(15), P(16) to Q(17), R(18) to S(19), each +1.

Apply exactly that shift to the third cluster. The one step that needs care is Z + 1: the alphabet wraps, so Z is followed by A.

Key facts

• N = 14, O = 15, P = 16, Q = 17, R = 18, S = 19.
• X = 24, Y = 25, Z = 26, and Z + 1 wraps to A = 1.
• When every letter moves by the same step, consecutive letters stay consecutive.

Common traps

• Stopping at Z and choosing YAZ because there is no 27th letter
• Choosing ZAB by moving each letter two places

No directly related past PYQ was found.