The best answer is B.
This choice clearly and specifically defines why the speaker is both relieved and regretful. The other options are a bit vague and do not directly relate to the idea of learning to be responsible about money.
We always drove around the cabin!
"every winter" points to the past, but also it's a habitual activity in the past, which is also completed in the past- so we need simple past.
Is there a picture available?
If you want to write a good mixed sequence paragraph, you need to be aware of what in the paragraph you are trying to say, and how the things should coordinate with each other and with the general idea of the paragraph. In order to get a good paragraph, mix the basic listing of ideas in a paragraph with sequencing and coordinating them in an interesting way and you're sure to get an interesting paragraph.
