Following the 1989 earthquake in San Francisco, all telephone lines to and from the area were overloaded with callers trying to ascertain the condition of their loved ones. The ________ continued for nearly two days.
句意：1989年旧金山地震后，这里所有打进打出的电话线都挤满了打电话的人，努力确认他们亲人的情况。这种拥挤的状况持续了将近两天。congestion挤满，拥挤。conviction说服，信服。collaboration合作，协作。commotion骚扰；喧闹。因此，本题的正确答案为A。