The most desirable style of interaction in permanent intercultural relationships, according to the textbook, is based on agreement and negotiation.

consensus

Explanation:

Consensus refers to the common agreement made among a group for a common purpose. It is agreed upon by the maximum number of members of the group to work for the welfare of everyone. All the factors are considered and then the decision is made which is agreed upon by each individual. Consensus creates a smooth flow of work which facilitates the working of any idea.

answer; importance to people; or acceptance;