Select the option that is related to the third term in the same way as the second term is related to the first.Odometer: Speed :: Ammeter: ?

Select the option that is related to the third term in the same way as

1.	Select the option that is related to the third term in the same way as the second term is related to the first.Odometer: Speed :: Ammeter: ?
A.	Earthquake
B.	Current
C.	Air
D.	Mass
Answer» C. Air