When Planning 'Continual Improvement', Which Approach for Assessing the Current

When planning 'continual improvement', which approach for assessing the current state of a service is CORRECT?

A) An organization should always use a single technique to ensure metrics are consistent
B) An organization should always use a strength, weakness, opportunity and threat (SWOT) analysis
C) An organization should always develop competencies in methodologies and techniques that will meet their needs
D) An organization should always use an approach that combines Lean, Agile and DevOps methodologies