The answer is c. hope this helps
I believe the answer is: A. <span>overcoming communication barriers
Communication barriers refer to every factors that prevent a communicator from delivering the core content of their information.
This could include things such as difference in language, difference in background experience, difference in culture, etc.</span><span />
A. It always ends in -ly.
Kennings-a compound expression in Old English and Old Norse poetry with metaphorical meaning, e.g., oar-steed = ship.
I don't know if this is what you ment. xD