Put a semicolon because it is 2 independent clauses
Although he is not popular, his reputation is great.
I love to go shopping however I’m on a budget.
Ok I got this from some one else hope it helps
I say its C. Logic is easily understood
The noun in the sentence is "logic" which is abstract since it can't be seen or touched.
Hope this helps :)
I said this a long time ago you drive before me and i will drive after you on the was to the hotel today.
i hope this will work