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Look at these details from a paragraph about the same topic:
• If a dog is sad or wants something, it may whine.
• One or two high barks are a dog's way of saying hello.
• Growling can mean that the dog does not feel safe.
Choose the main idea that ties all the details together.
A. The sounds that dogs make tell information.
B. Whining can mean that a dog is sad.
C. A dog moves its tail in different ways to tell how it feels.
D. A dog barks over and over when it wants something.​