Improving learning efficiency by decreasing time between action and effect is part of which lean-agile principle

The Lean-Agile principle is based on the concepts of the Agile Manifesto and Lean thinking and it is used to empower and engage teams to achieve unprecedented levels of productivity.
Improving learning efficiency by decreasing time between action and effect is part of the following  Lean-Agile principle: Build incrementally with fast, integrated learning cycles

United states v.  nixon, 418  u.s.  683 (1974),  was  a landmark  united states supreme court case  that resulted in a unanimous  decision  against president richard  nixon, ordering him to deliver tape recordings  and  other subpoenaed materials to a  federal  district  court.

The correct answer is b