Select the word - pair in which the two words are related in the same way as are the two words in the following word - pair
Resistance : Ohm

Options

A. Time : Clock
B. Temperature : Thermometer
C. Pressure : Barometer
D. Length : Metre

Answer

D

Explanation

Except .Length - Metre., in all other word - pairs the second is the instrument which shows or measure the first. Metre is the unit of measurement of length.