What is the red wavy underline beneath the text

Need asap write a short paper describing the history and differences between six sigma, waterfall, agile, and scrum models. understanding these models can give you a good idea of how diverse and interesting it development projects can be. describe what the rationale for them is and describe their key features. describe the history behind their development. at least 400 words

Me ajude por favor , coloquei uma senha e não consigo tira-la no chorme

Which task uses a simple parameter?