I would say the correct answer is B. longing. In this poem, the wife is lamenting because she is separated from her husband - for a very long time. She misses her husband and wants to be reunited with him, so she is definitely not content or blithe about her situation (blithe means happy). She is not confused either - she knows that she wants her husband back.
Most of the texts were about the church and belief in god. Many philosophers of the mid ages even spoke how they could logically prove the existence of god, and many of them were supported by the church.
