Paulina is constantly distracted by Samantha, her colleague, who always slouches in her chair during meetings, fiddles with papers and pens, and keeps cracking her knuckles while talking. In the given scenario, Paulina gets distracted by .

body language barriers

Explanation:

Body language barriers occurred when a person's body language is preventing positive communication with other people.   It's a form of non-verbal communication that can make someone seen as a distraction, unapproachable , or untrustworthy.

Examples of body language barriers:

Folded arms, Cracking Knuckles, Frowned face,  Slouching, or Turning back against other people.

In the example above,  Paulina would most likely distracted by the cracking of Samantha's knuckles. Often times, irregular sound like that will take out your concentration and make you unable to focus on your task.

your question is incomplete

explanation:

the first one is d and the second a