A tree of height h metres is broken by a storm in such a way that its top touches the ground at a distance of x metres from its root. Find the height at which the tree is broken. (Here h > x)

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