Which of these corrects the shift of voice in the following sentence? "Stay where you are and someone will be sent as soon as possible," the police officer had assured him. A. "Stay where you are and we will send someone as soon as possible," he was assured by the police officer. B. "Stay where you are and we will send someone as soon as possible," the police officer had assured him. C. Stay where you are and someone will be sent by us as soon as possible," the police officer had assured him. D. "Stay where you are and someone will be sent as soon as possible," he was assured by the police officer.