Details that are "factual" are details or pieces of information, that can be proven to be true and accurate--scientifically, realistically, etc.
B and C, a hook is very important
The Rule of Thirds is a general guideline for how to create an interesting composition which states that any image—painting, photograph, graphic design—should be broken into a grid with two vertical and two horizontal lines, creating nine equally proportioned boxes.
This lesson is about communication towards the other people from other countries with different beliefs, opinions, way of thinking and speaking. This should be the answer to your question.