In the transactional model of communication, individuals who participate in an interaction are known as

The answer would be a communicator. An individual who communicates, particularly one skilled at passing on information, thoughts, or strategy to the public. It could be also defined as an individual in the business of communications, as TV or periodical publishing.

b) trade is easy because of the direct line between their major ports. bilateral trade reached 89,6 thousand million.

the answer is either c or d i think its d