Choose or find odd letter group - RSXY , NOUV , MNST , DEJK

B. NOUV

Choose or find odd letter group - YNHIA , SGRFI , ISEPU , FHUJU

D. FHUJU

Choose or find odd letter group - VYXW , PSRQ , CGEF , JMLK

C. CGEF

Choose or find odd letter group - USAGE , USUAL , UKASE , URINE

B. USUAL

Choose or find odd letter group - YXVZ , QPMR , KJHL , DCAE

B. QPMR