Number of letters skipped in between adjacent letters in the series is in the order of 12, 22, 32.
Which of the following series observes the rule given above ?

A. CEJT

Choose or find odd word - Beaver , Alpaca , Walrus , Koala

C. WALRUS

A woman introduces a man as the son of the brother of her mother.
How is the related to the woman ?

C. COUSIN

Choose or find odd letter group - PRT , MOQ , GEC , TVX , SUW

C. GEC

Choose or find odd letter group - CEI , PRU , JLP , QSW , HJN

B. PRU