What is the strangler-fig-friendly practice of feature toggling combined with trunk-based development primarily meant to achieve?

A Allowing developers to merge incomplete work into the main branch frequently while keeping unfinished features hidden from users until they are ready, reducing long-lived branches and merge conflicts B Forcing every developer to work on a separate long-lived branch for each feature C Eliminating the need for code review before merging D Replacing automated tests with manual QA sign-off