두문장을 한문장으로 바꿀때..

두문장을 한문장으로 바꿀때..정확한 답이 무었일까요?
the waman was dancing with her father.
i saw it.

- i saw the woman who was dancing with her father.
- i saw the woman dancing with her father.
어떤것이 맞는 문법인가요?
아니면,,또다른 답이 있나요?