In the book of Esther, what could be the significance of the detail that Esther concealed her Jewish identity upon entering the king's harem (Esther 2:10, 20)?

A It showed a lack of faith in God's protection. B It was a strategic move to protect herself and potentially her people, demonstrating prudence and wisdom in a precarious situation, as revealing her identity prematurely could have jeopardized her position and the safety of the Jewish community. C It was required by Persian law. D It indicated she was ashamed of her heritage.