Claim: walking is not only good for the cardiovascular system but has other benefits that sharpen the mind for both young and old people. which piece of evidence would you suggest that the writer add to his or her essay to best support this claim? a. walking can reduce the risk of heart disease, according to a recent study. b. physical inactivity contributes to more stress and inadequate sleep. c. endorphins released during walking build brain cells and make people feel good. d. walking, more than running, promotes healthy habits.

The correct answer is C. Endorphins released during walking build brain cells and make people feel good.

Explanation:

A claim or thesis statement which is a statement that expresses the position of an author and guides an essay should always be supported by evidence as this shows the audience the claim or position of the author is valid. For doing this, the best is to provide verifiable statement or facts that directly shows the way in which the main claim is true and should be supported. In this case, the claim or thesis is " Walking is not only good for the cardiovascular system but has other benefits that sharpen the mind for both young and old people", which shows the position and purpose of the author is to prove walking had benefits for the mind, considering this, the statement that best support this claim is "Endorphins released during walking build brain cells and make people feel good", because this statement is verifiable and also supports the main point of the author, which are the benefits on the mind rather than on the cardiovascular system.

sorry, you didn't give me the proper question

explanation:

the sentence that best describes the tone of the passage from the radio broadcast compared to the passage from the book is b. the radio broadcast has a more surprised tone.

consider the text evidence: in the passage from the book, the description is more matter-of-fact. it is simply describing the things resembling little grey snakes, but there is no urgency in the description. on the other hand, in the passage from the radio broadcast, there is definetely urgency (you can tell from the expression used, "good heavens", which clearly indicates surprise.)