What are the other two gases other than carbon dioxide that are given out during burning of fossil fuels and contribute towards acid rain

Question

$\begin{array}{1 1} (a)\; \text{carbon monoxide and nitrogen dioxide} \\ (b)\; \text{sulphur dioxide and nitric oxide} \\ (c)\; \text{nitrogen dioxide and hydrogen chloride} \\ (d)\; \text{none of these} \end{array}$