Two angles of a triangle are equal and third angle is smaller than others by 15^{\circ} . Find the angles

Question

( A ) 90^{\circ},45^{\circ},45^{\circ}
( B ) 65^{\circ},65^{\circ},50^{\circ}
( C ) 75^{\circ},40^{\circ},45^{\circ}
( D ) 60^{\circ},45^{\circ},45^{\circ}