Answer: Practice of empathy
Explanation:
Empathy is ability due to which a person tends to share their ideas and thought with other people so that they can understand it.It helps people to understand about others emotion, mind state ,issues, etc.
According to the question, practicing empathy will make a person more tolerant between working with other culture people as they will tend to understand others feeling and views more.Thus, the person can control himself/herself by perceiving emotions of others.
Other options are incorrect because individualism increment, acknowledging own communication pattern and increasing ethnocentrism are not the impact that makes a person tolerant while working with other different cultured people.Thus, the correct option is empathy practice.