In the following triads, each group of letters is related to the subsequent one following a certain logic. Select from the given options, the one which follows the same logic.
WASP – WPSA – PSAW
GUTS – GSTU – STUG

Given: 

WASP – WPSA – PSAW
GUTS – GSTU – STUG

Logic: Position of letters are interchanged.

For, WASP – WPSA – PSAW

For, GUTS – GSTU – STUG

Similarly,

​NICE – NECI – ECIN

Thus, correct option is (b).