What evidence from "Conservation as a National Duty" best establishes that Roosevelt's speech is structured to bring attention to an issue and to make a call to action for change?

Select all that apply. (More than one answer.)

A) "Now, I ask you to think what that means; and I am speaking with historic literalness. In the development, the use, and therefore the exhaustion of certain of the natural
resources, the progress has been more rapid in the past century and a quarter than during all preceding time of which we have record."

B) "This Conference on the conservation of natural resources is in effect a meeting of the representatives of all the people of the United States called to consider the
weightiest problem now before the Nation, and the occasion for the meeting lies in the fact that the natural resources of our country are in danger of exhaustion if we
permit the old wasteful methods of exploiting them longer to continue."

C) "I have asked you to come together now because the enormous consumption of these resources, and the threat of imminent exhaustion of some of them, due to
reckless and wasteful use, once more calls for common effort, common action."

D) "With the rise of peoples from savagery to civilization, and with the consequent growth in the extent and variety of the needs of the average man, there comes a steadily increasing growth of the amount demanded by this average man from the actual resources of the country.”