When you live with your parents you have them to depend on, to take care of you and to support you financially. I’m not sure if that was the answer you were looking for but I hope I helped!
The correct answer is D. Even if you've never handled a trowel in your life, we're asking for you assistance.
because its a dependent clause and cannot stand alone and complex sentences are made up of dependent and independent clauses.
Hope this helps.