Two rectangular blocks, \(X\) and \(Y\), of the same material have different dimensions but the same overall resistance. Which of the following equations is correct?

A.     resistivity of \(X \times {\text{length of }}X = {\text{resistivity}}\) of \(Y \times {\text{length of }}Y\)

B.     \(\frac{{{\text{length of }}X}}{{{\text{cross sectional area of }}X}} = \frac{{{\text{length of }}Y}}{{{\text{cross sectional area of Y}}}}\)

C.     resistivity of \(X \times {\text{cross sectional area of }}X = {\text{resistivity of }}Y \times {\text{cross sectional area of }}Y\)

D.     \(\frac{{{\text{length of }}X}}{{{\text{cross sectional area of }}Y}} = \frac{{{\text{length of }}Y}}{{{\text{cross sectional area of }}X}}\)

B