D. That is in perfect condition is misplaced; this sentence could be misread as if someone thinks that your grandmother is in perfect condition rather than the antique dresser.
They practice empathy.
They smile often.
They are intuitive of other people's needs.
They mind their manners.
They put others first
They are patient -- even when they don't feel like it.
They apologize -- but only when warranted.
No, you don't because it is not a compound sentence.
I do believe you are! Dashes are like the opposite of parentheses.