A house was sold for Rs. y by giving a discount of x%, then the list price was :

• A. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>100y</center></td></tr><tr><td style="text-align: center;">100 x</td></tr></table>
• B. <table><tr><td></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>100y</center></td></tr><tr><td rowspan="4">1 </td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>x</center></td></tr><tr><td style="text-align: center;">100</td></tr></table>
• C. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>100x</center></td></tr><tr><td style="text-align: center;">100 y</td></tr></table>
• D. <table><tr><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>100y</center></td></tr><tr><td style="text-align: center;">1 x</td></tr></table>