Rey Presented an Informative Speech on Earthquakes

Multiple Choice

Rey presented an informative speech on earthquakes. He described the structural causes of earthquakes, how they develop, which areas of the earth are prone to quakes, how quakes are measured, the damage they do, and what to do when one hits. The speech became dry, the audience's attention declined, and Rey's speech exceeded the time limit by three minutes. From this description, what was Rey's mistake?

A) Poor topic selection
B) Lack of appropriate research
C) Incoherent organization
D) Failing to narrow his topic