Choose or find odd pair of words - (Pyroheliometer : Radiation) , (Calorimeter : Humidity) , (Planimeter : Area) , (Barometer : Humidity)

D. BAROMETER : HUMIDITY

Choose or find odd number pair - (121-196) , (144-225) , (36-83) , (16-49)

C. 36-83

Choose or find odd number - 3740 , 4635 , 5869 , 7946 , 2378

A. 3740

Choose or find odd letter group - CHM , HMR , RWB , DIN , LPU

E. LPU

Choose or find odd word - Nimitz , Yamamoto , Nelson , Montgomery

D. MONTGOMERY