What should be an essantial in your survival kit?

Which techniques best describe the tone the author is using in this passage?

What is one advantage of listening to an audio recording as opposed to silently reading a play?

Which of the following is a complex sentence? a. after henry submitted his essay, he realized that he hadn't proofread the last page. b. identity theft is a growing problem, especially among seniors. c. we didn't have enough potatoes for dinner, so we served rice instead. d. jim tried to watch a video on a device connected to a crowded wireless network; as a result, the video stuttered and froze.