Which of the following is an effective central idea?
A) How safe is the radiation emitted by your cell phone?
B) Negative aspects of cell phone radiation.
C) Cell phones emit tiny amounts of radiation, which scientists believe may be linked to certain types of brain cancer.
D) Cell phone radiation and radiation from microwaves both contribute to brain cancer.

Question

Quizplus · Accepted Answer

Option C presents a clear, focused central idea that connects cell phone radiation to a specific health concern (brain cancer), making it an effective central idea. It is specific and makes a claim that can be developed with evidence and analysis.

Which of the Following Is an Effective Central Idea