Explanation:
1 note, observe, consider, mark. 3 consideration, care; caution, vigilance, watchfulness. See synonyms for heed
the answer is B. the river
The main idea of this excerpt is "Though the government did help end mad cow disease, the people were angry they didn't help sooner."
<h3>What is the Main Idea?</h3>
This refers to the unifying idea in a literary text and can also be referred to as a theme.
Hence, we can see from the complete text that the writer is talking about the lack of intervention by the government and how the mad cow disease ravaged the lives of people.
Read more about the main idea here:
brainly.com/question/25088072
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I believe the answer to that question is probably "no knowledge is ignorant," although both are very close.