What is iambic pentameter and what are some simple examples of it?

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.

Ato of . it be a , is as an . it be a ,in - as a . , it be an , is by to as a , , or an .. (s)of : 12345

Which sentence uses whether correctly