Complex sentence: In spite of what Ramsden says, Ann accepts Tanner as her guardian, though Tanner doesn't want the position at all, and she challenges Tanner's revolutionary beliefs with her own ideas.
Split into simpler sentences: In spite of what Ramsden says, Ann accepts Tanner as her guardian, though Tanner doesn't want the position at all. She also challenges Tanner's revolutionary beliefs with her own ideas.