How does cohesiveness relate to the application of tactics with respect to education and training? (Reference MCDP 1-3, pages 8-3 to 8-8) Select one a. Cohesiveness is important in some aspects of Marine Corps operations. Training and education can only improve cohesiveness to a minimal level O b. Technical proficiency is more important than cohesiveness. If every Marine is a performer, the unit will succeed O c. Cohesiveness is fundamental to the Marine Corps approach to leadership and does not relate to training and education. Old. The speed and efficiency of a unit depend not only on the technical proficiency of its individual members but also in large part upon its cohesiveness