Depending on what you are talking about, the content is what is being said or used. such as in an essay, the words is the content. or if it's like a picture, it who or what is in the picture.
Answer:
1. Sugar and salt can be hidden in some foods, so work to avoid them.
Explanation:
Since the text is about how sugar and salt can be hidden and it explains how you can detect them, I'm sure this is the main idea of the paragraph.
///// the answer is D /////
