If be acute angle and cos = (15 / 17) , then the value of cot

• A. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>2 <span style=" text-decoration: overline;">8</span></center></td><td rowspan="2"></td></tr><td align="center">15</td></table>
• B. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>8</center></td><td rowspan="2"></td></tr><td align="center">15</td></table>
• C.
• D. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center> <span style=" text-decoration: overline;">2</span></center></td><td rowspan="2"></td></tr><td align="center">17</td></table>
• E. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>8 <span style=" text-decoration: overline;">2</span></center></td><td rowspan="2"></td></tr><td align="center">17</td></table>