How many years it would take to spend one Avogadro's number of rupees at a rate of 10lakh of rupees in one second

Question

$\begin{array}{1 1}(a)\;100000000\;years&(b)\;2\times 10^6years\\(c)\;1.9089\times 10^{10}\;years&(d)\;10^{21}\;years\end{array}$