What is the meaning of 'central idea' in a passage? Please select all the correct answers.
⭕️A . A central idea is an example in the passage.
⭕️ B . A central idea is what the passage mostly about.
⭕️ C . A central idea is a supporting detail.
⭕️ D . A central idea is a main idea or a key idea.
Please help me thank you .