Final answer:
A strong subject matter requires clarity, coherence, and a focus on the topic while avoiding unrelated or irrelevant information.
Step-by-step explanation:
In order to have a strong subject matter, it is important to have clarity and coherence in conveying the topic. This means that the written work should consistently feature clear and coherent language that allows readers to understand the concepts and transitions. Additionally, the writing should be focused on the topic and avoid unrelated or irrelevant information.