The answer is A. B is correct, C is a comma splice, and D is correct
The commisionform a city government merges executive and legistlative function in a single froup of officials
D seems like your best bet
I'd say split infinitive!
i say this because <span>the infinitive, "to leave," is split into two by "quietly."</span>
i think the sentence should say. "I whispered the instructions to leave the building quietly."