A book seller allowed 10% discount on printed price. He gets 30% commission from publisher. His profit in per cent will be

• A. 20
• B. <table><tr><td rowspan="2">28</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>4</center></td></tr><tr><td style="text-align: center;">7</td></tr></table>
• C. 25
• D. <table><tr><td rowspan="2">26</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>3</center></td></tr><tr><td style="text-align: center;">7</td></tr></table>