The marked price of an article is Rs. 5000. But due to a special festive offer a certain percent of discount is declared. Mr. X availed this opportunity and bought the article at reduced price. He then sold it at Rs. 5000 and thereby made a profit of (100 / 9) %. The percentage of discount allowed was

• A. 10
• B. <table><tr><td rowspan="2">3</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 1</center></td><td rowspan="2"></td></tr><td align="center">3</td></table>
• C. <table><tr><td rowspan="2">7</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 1</center></td><td rowspan="2"></td></tr><td align="center">2</td></table>
• D. <table><tr><td rowspan="2">11</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> 1</center></td><td rowspan="2"></td></tr><td align="center">9</td></table>