Find the measure of angle B and angle D from the given isosceles trapezoid, if \[m\angle B=5x+26\] and \[m\angle C=12x-2\]

• A. \[m\angle B=46{}^\circ \] and \[m\angle D=46{}^\circ \]            
• B. \[m\angle B=46{}^\circ \] and \[m\angle D=134{}^\circ \]
• C. \[m\angle B=134{}^\circ \]      
• D.                                Cannot be determined
• E. None of these