Use the following data to answer questions 32 through 35 : RQM Corporation Selected Financial Data December 31, 2009
$$
\begin{array}{lr}
\hline \text { Net sales } & \$ 1,800,000 \\
\text { Cost of goods sold } & 1,080,000 \\
\text { Operating expenses } & 315,000 \\
\text { Net operating income } & 405,000 \\
\text { Net income } & 195,000 \\
\text { Total stockholders' equity } & 750,000 \\
\text { Total assets } & 1,000,000 \\
\text { Cash flow from operating activities } & 25,000 \\
\hline
\end{array}
$$
________ RQM's gross profit margin, operating profit margin, and net profit margin, respectively, are:
(a) $40.00 \%, 22.50 \%, 19.50 \%$
(b) $60.00 \%, 19.50 \%, 10.83 \%$
(c) $60.00 \%, 22.50 \%, 19.50 \%$
(d) $40.00 \%, 22.50 \%, 10.83 \%$