Explanation:

Let’s break this down:

- Bureaucratisation: This is all about building formal rules, hierarchies, and procedures inside organizations. It’s about structure, more than the logic behind actions.

- Rationalisation: Here’s the thing—this is the process that makes rational, logical, and efficient actions more dominant. It’s about reasoning, planning, and making choices based on logic rather than tradition or emotion.

- Organisation: This just means bringing people or processes together in a structured way. It’s about coordination, not specifically about being rational.

- Legitimatisation: All about making something accepted or justified, especially in the eyes of others—think “gaining legitimacy,” not “being rational.”

So yeah, Rationalisation is the clear winner here. That’s the word for making rational action more dominant.