What are the two steps to conduct logic and information structuring in a speech?

A、1. Identify the keywords.2. Find the logical link between the keywords.;
B、1. Remember the timing of events.2. Find the logical link between the events.;
C、1. Identify the key ideas.2. Find the logical link between the key ideas.;
D、1. Identify the key ideas.2. Identify the keywords.