Wendell explains that his iPhone X is dropping calls.
Which of the following is an open question that would best help you further evaluate the issue with Wendell?
A . How is the rest of your experience with the iPhone, aside from the dropped calls?
B . Do you find that you are driving in a car when these dropped calls occur?
C . Are you in an elevator or a parking garage when the iPhone drops the calls?
D . Could you please tell me about the situations when your iPhone drops calls?
Answer: D