The three options that are most appropriate to include in a summary of the excerpt from President Reagan's speech are:
A. Popular novels from the past often ask provocative questions that are important to consider today.
B. Many Americans have given up and say that the nation is no longer great or a land of dreams.
D. President Reagan believed that John Wayne would argue that he was not the last American hero, because there are many more.
(Note: Option D is not directly applicable based on the excerpt provided, as it mentions John Wayne but does not expand on his legacy or role as a hero. The focus of the excerpt is on the question of America's place in history and its ideals, while discussing the national malaise. So, the best answers would likely be A and B, and perhaps the removal of D in favor of another option that ties more closely to Reagan’s message.)