One of the Main Differences Between the Linear Model and the Transactional

One of the main differences between the linear model and the transactional model of communication is ______.

A) the linear model includes only senders while the transactional model includes both senders and receivers
B) the linear model focuses primarily on noise while the transactional model primarily focuses on feedback
C) linear model messages travel from sender to receiver while transactional model messages go back and forth simultaneously
D) linear model feedback is verbal while transactional model feedback is both verbal and nonverbal