After the accident, i was so confused that my head was spinning for days. hyperbole personification symbolism metaphor

In this unit ,we learned about arguments and rhetoric.in an argument we ,not informal language.

In this unit we learned about arguments and rhetoric. in an argument we use ,not informal language

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.