Lochinvar loves another man's bride.
Answer: Option C.
Step-by-step explanation:
In the poem, Lochinvar is shown in a conflict. The conflict is that he is in love with a girl named Ellen. He wanted to marry Ellen. And for this, he went to Ellen's father also, to request him to let him marry his daughter.
But Ellen's father did not accept this proposal and rejected it. He made his daughter marry another guy. In the poem, Lochinvar is seen going to Ellen's wedding also with the intention that he still loved Ellen and he wanted to marry Ellen.