Calculate the number of moles of ammonium sulphate present in 15.84 kg of it. (H=1, N=14, O=16, S=32)

Question

$\begin{array}{1 1} (a)\; 130\; moles \\ (b) \;120 \;moles \\ (c)\; 110\; moles \\ (d)\; 80 \;moles \end{array} $