Answer: Requirements for Becoming a Naturalized US Citizen
The title that best fits this diagram would be "Requirements for Becoming a Naturalized US Citizen." Naturalization is the process by which a non-citizen of a country acquires citizenship or nationality.
The list requires the individual to live in the United States as a permanent resident. Therefore, it cannot be a list of requirements for becoming a permanent resident. Moreover, the other processes are all required to be completed before arrival to the US.