Answer: Noise
Step-by-step explanation:
In terms of communication process, noises is the factor which obstructs communication to take place between listener and speaker. This noise can be created through outside or external mode and internal mode
.Any outside sound like vehicle honking, loud speaker noise,etc can disrupt communication whereas internal thoughts,deep thinking etc while communicating interferes the process.
According to the question,Richard's mood is disturbed due to the bad news about foreign counterpart. So, due to his involvement in internal thoughts about foreign counterpart situation, Richard is not able to concentrate on subordinate's request of having family emergency leave and situation , so displays no understanding .Thus, communication is getting interrupted between him and subordinate due to noise in communication process.