Excerpts from Stealth Company's December 31,2018 and 2017,financial Statements Are

Excerpts from Stealth Company's December 31,2018 and 2017,financial statements are presented below: Stealth Company's 2018 return on assets is (rounded to one decimal place) :
$$\begin{array} { | l | r | r | } \hline & \mathbf { 2 0 1 8 } & \mathbf { 2 0 1 7 } \\\hline \text { Accounts receivable } & \$ 40,000 & \$ 36,000 \\\hline \text { Inventory } & 28,000 & 36,000 \\\hline \text { Net sales } & 190,000 & 186,000 \\\hline \text { Cost of goods sold } & 114,000 & 108,000 \\\hline \text { Total assets } & 425,000 & 405,000 \\\hline \text { Total stockholders' equity } & 240,000 & 225,000 \\\hline \text { Net income } & 32,500 & 28,000 \\\hline\end{array}$$

A) 7.1%.
B) 7.8%.
C) 13.5%.