From two points, lying on the same horizontal line, the angles of elevation of the top of the pillar are and ( < ). If the height of the pillar is h m and the two points lie on the same sides of the piller, then the distance between the two points is

• A. h (tan tan ) metre
• B. h (cot cot ) metre
• C. h (cot cot ) metre
• D. <table><tr><td rowspan="2">h</td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>tan tan </center></td><td rowspan="2">metre</td></tr><td align="center">tan tan </td></table>