According to the textbook, the study of interpersonal communication emerged as one of the primary emphases in the communication discipline because of the ______.

A. baby boom that followed the end of World War II
B. realization that relational development and communication share a symbiotic relationship
C. hippie movement in the 1960s
D. publishing of John Gray’s Men Are from Mars and Women Are from Venus

B. realization that relational development and communication share a symbiotic relationship