How much copper can be obtained from 100 g of copper sulphate $(CuSO_4)?$ (Atomic mass of $Cu=63.5\;amu$)

Question

$\begin{array}{1 1} (a)\; 35.81\;g \\(b)\; 36.51\;g\\ (c)\;39.81\;g \\ (d)\;40.4\;g \end{array} $