Final answer:
Drivers in the social styles matrix are defined by low responsiveness and high assertiveness, which is reflected in the fourth option provided in the question. So, the correct option is 4) Low responsiveness and high assertiveness.
Step-by-step explanation:
In the social styles matrix map, drivers are defined by their low responsiveness and high assertiveness. Specifically, drivers make decisions quickly, preferably function with a direct and task-oriented approach, and may appear more concerned with results and efficiency than personal relationships or emotional considerations. According to the options presented in the question, drivers are best characterized by the fourth option: Low responsiveness and high assertiveness. The social styles matrix is an instrument used in social psychology to help understand different personality types and how they interact with others in various social situations and environments.