What is the design principle for creating a neutral area that does not distract from the area of emphasis?

- Subordination.

Explanation:

'Subordination' is demonstrated as the design principle that is quite commonly employed by the architects to reducing or neutralizing the impact of other architectural elements in order to bring the emphasis or attention to a specific centerpiece or focal element of the design. The compositional elements are minimized in effect and employed as complimentary or subordinate element that functions to captivate the attention towards the area of emphasis and enhances its impact and efficacy. Therefore, 'subordination' is the correct answer.