In the figure, ∠A is 37°. What would prove that ∠C is also 37° ? A )
A reflection of ΔABD over BD, such that ΔABD maps to ΔCBD.

B)
A rotation of ΔABD 180° clockwise about point B, such that ΔABD maps to ΔCBD.

C)
A translation of ΔCBD to the left, such that ΔCBD maps to ΔABD.

D)
A rotation of ΔCBD 90° counterclockwise about point D, such that ΔCBD maps to ΔABD.