In \( \triangle A B C, A D \perp B C \) at \( D . B E \perp A C \) ...

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In \( \triangle A B C, A D \perp B C \) at \( D . B E \perp A C \) at \( E . A D \) and \( B E \) meet at \( F \). It \( B F=A C \), find \( \angle A B C \)
(A) \( 40^{\circ} \)
(B) \( 45^{\circ} \)
(C) \( 50^{\circ} \)
(D) \( 60^{\circ} \)
\( \mathrm{P} \)
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