How many atoms of carbon represent 1.5 mole?

Question

$\begin{array}{1 1} (a)\; 6.022 \times 10^{23} \\ (b)\;1.2044 \times 10^{23} \\ (c)\;3.011 \times 10^{23}\\ (d)\; 9.033 \times 10^{23} \end{array}$