Answer:
A. a systematic approach to understand the organization
Explanation:
Business diagnosis can be defined as a strategic technique which typically involves the process of defining, identifying and classifying the various business processes, logistics, product quality in order to have an indepth understanding and knowledge about an organization.
The diagnostic process is a systematic approach to understand the organization because it involves critically studying all its aspects and areas.
Hence, the information gathered through the diagnostic process can be used by the management to facilitate its decision-making process and its competitive advantage.