\textbf{129.} In triangle $ABC$, with $BC = A$, altitude $AH = h$, and angle $\hat{A} = A\circ^\circ$, the triangle can be constructed. What is the maximum value of $h$?
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(1) $f\sin f\circ^\circ$ \hfill (2) $f\cos f\circ^\circ$ \hfill (3) $f\tan f\circ^\circ$ \hfill (4) $f\cot f\circ^\circ$
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