Explanation:

- The statement emphasizes that management principles ensure decisions are logical and evidence-based, not driven by bias.

- Option 1: Providing managers with useful insight into reality

Managers use these principles to understand real situations better and make practical choices.

- Option 2: Scientific decisions

Applying principles helps managers make decisions based on data and analysis, rather than guesswork or feelings.

- Option 3: Meeting changing environmental requirements

Knowledge of these principles also helps managers adapt to shifts in the business world.

- Option 4: All of the above

Since all the above statements are benefits of understanding management principles, this is the most comprehensive answer.

Correct Answer: Option:4 - All of the above