Final answer:
The correct answer is D. Functional-driven. Agile methods are iterative and incremental approaches to software development that focus on flexibility, collaboration, and continuous improvement.
Step-by-step explanation:
The correct answer is D. Functional-driven. Functional-driven is not a type of Agile method. Agile methods are iterative and incremental approaches to software development that focus on flexibility, collaboration, and continuous improvement. Scrum, Kanban, Extreme Programming, Lean Software Development, and Feature-Driven Development are all Agile methods.