From 40m away from the foot of a tower, the angle of elevation of the top of the tower is 600 . What is the height of the tower?

• A. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>120</center></td><td rowspan="2">m.</td></tr><td align="center"> <span style=" text-decoration: overline;">3</span></td></table>
• B. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>60</center></td><td rowspan="2">m.</td></tr><td align="center"> <span style=" text-decoration: overline;">3</span></td></table>
• C. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>50</center></td><td rowspan="2">m.</td></tr><td align="center"> <span style=" text-decoration: overline;">3</span></td></table>
• D. <table><tr><td rowspan="2"></td><td style="border-bottom:1px solid #000000;vertical-align:bottom;padding-bottom:2px;"><center>130</center></td><td rowspan="2">m.</td></tr><td align="center"> <span style=" text-decoration: overline;">7</span></td></table>
• E.