Which of the Following Is an Example of an Internal

Which of the following is an example of an internal disruption in the decoding process?

A) Loud construction sounds outside prevent Imraan from hearing the message.
B) Meaghan finds her mind drifting during a lecture as she thinks about her upcoming trip to Florence.
C) Brandon finds it hard to pay attention during the interview because the interviewer's phone keeps ringing.
D) Sylvia finds it difficult to read her colleague's e-mail message because it's filled with grammatical errors and typos.