Answer:
External noise.
Step-by-step explanation:
While internal noise happens in the mind of the speaker or the receiver in an interaction, external noise happens outside, in their surroundings. External noise can be quite distracting, preventing effective communication from happening. Examples of external noises are: people talking, car horns, loud music. In Shonda's case, the room is crowded. Even if people are talking in low voices, there are so many of them that the noise can seem quite overwhelming.