Household Brands Inc. $($HBI$)$ manufactures household goods in the United States. The company made two acquisitions in previous years to diversify their product lines. In $2011,$ HBI acquired cosmetics and consumer electronics companies. HBI is now, in $2020,$ comprised of three divisions: cosmetics$,$ household, and consumer electronics. The following information $($in thousands of dollars$)$ presents operating revenues, operating income, and invested assets of the company over the last three years:

Revenue Operating Income Assets

Cosmetics

$2018$ $ $24,500$ $ $2,300$ $ $10,000$

$201922,5001,90010,000$

$202019,6001,8009,500$

Household

$201817,4001,3007,500$

$201915,3001,1008,000$

$202012,5009006,500$

Electronics

$201813,5001,5004,500$

$20199,5001,1004,500$

$20208,7001,0504,300$

Household Brands Total

$201855,4005,10022,000$

$201947,3004,10022,500$

$202040,8003,75020,300$

The current compensation package is an annual bonus award. The senior executives share in the bonus pool. The pool is calculated as $20\%$ of the annual residual income of the company. The residual income is defined as operating income minus a cost of capital charge of $15\%$ of invested assets. Round all calculations to two significant digits.

Return on sales in the household division in $2019$ is $($rounded$)$:

A$)6\mathrm{.}34\%$

B$)7\mathrm{.}19\%$

C$)7\mathrm{.}88\%$

D$)8\mathrm{.}54\%$