In a triangle \( A B C, \angle A=60^{\circ} \) and \( b: c=(\sqrt{3}+1): 2 \) then \( (\angle B-....

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In a triangle \( A B C, \angle A=60^{\circ} \) and \( b: c=(\sqrt{3}+1): 2 \)
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then \( (\angle B-\angle C) \) has the value equal to
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(1) \( 15^{\circ} \)
(2) \( 30^{\circ} \)
(3) \( 22.5^{\circ} \)
(4) \( 45^{\circ} \)


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