Why Should You Stick to a Specific Topic or Focus

Why should you stick to a specific topic or focus when determining the content for a podcast?

A) It is easier for listeners to locate podcasts in the iTunes store.
B) Being too general means the podcast will compete with radio.
C) Targeting a specific audience means it will likely have more appeal to that segment
D) It sounds more professional.
E) It is better for search engine optimization.