The Quantity "Strain" Expressed in Terms of the Fundamental Quantities

Multiple Choice

The quantity "strain" expressed in terms of the fundamental quantities (mass, length, time) is equivalent to:

A) MLT ^{- 1}.
B) ML ^{- 1}T ^{- 2}.
C) M²L ^{- 1}T ^{- 3}.
D) a dimensionless quantity.