A tower subtends an angle of \( 30^{\circ} \) at a point on the same level as its root, and at a...

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A tower subtends an angle of \( 30^{\circ} \) at a point on the same level as its root, and at a second point \( \mathrm{h} \mathrm{m} \) above the first, the depression of the foot of the tower is
\( P \) \( 60^{\circ} \). Then the height of the tower is

W
(A) \( \mathrm{h} \mathrm{m} \)
(B) \( 3 \mathrm{~h} \mathrm{~m} \)
(C) \( \sqrt{3} \mathrm{~h} \mathrm{~m} \)
(D) \( (\mathrm{h} / 3) \mathrm{m} \)
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