Which concept is described by the Last Responsible Moment?

Which concept is described by the Last Responsible Moment?
A . The last moment in a Sprint when code changes are allowed after this only stabilization work should be conducted.
B. The last moment a Developer is responsible for quality after this the Tester is responsible.
C. Discover decisions to be made as soon as possible but postpone deciding to the latest reasonable moment.
D. Making decisions as soon as possible to close feedback loops as soon as possible.
E. Opening a learning window to validate hypotheses and create learning.

Answer: A,C