Which is the purpose of the transitions although and however?

A to show the order of importance

B to conclude or summarize

C to show a logical relationship

D to show a logical relationship

Is c and do the same because if so then to show a logical relationship

Explanation:

that's what I think because when you use however or although you're using your like okay although they like each other they can never be together or however you can choose to go with him or with her your choice