Beyond his role as a judge, what unique act of devotion did Jephthah undertake, and what does this reveal about the complexities of faith during the period of the Judges?

A He built a magnificent temple to rival Solomon's, showcasing his wealth and power. B He made a vow to sacrifice the first thing that came out of his house to meet him if he won a battle, resulting in the tragic sacrifice of his daughter. C He established a school for prophets, training them in the arts of divination and prophecy. D He led a successful campaign to recover the Ark of the Covenant from the Philistines, restoring Israel's spiritual center.