Which term is used to describe members of a group who exert less effort than they would if they had worked alone?

Which of the following sentences is describing a vocal tic?

A) Kane's voice reverberates down the empty hallways of Xanadu. B) The gangsters in Pulp Fiction repeatedly utter foul words. C) Owen Wilson speaks in slow, fluid phrases with offbeat intonation. D) In Alien, Ripley's voice is soft, conveying her calm, rational approach to the crew's problems.

_______________ is verbal, visual, and vocal responses to messages

Fill in the blank(s) with correct word