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.
Rephrase lol so I can answer if u still need the help
Its about a good person. The girl had to be killed or else a lot more people, including her and almost an entire faction of a community. Nobody wanted the girl to die but she had to.